AI Image Generation Prompts

Dreo Cool Mist Humidifier — Bedroom

ASIN B0DJVFX2KY · amazon.co.uk · 4 new gallery images for Nano Banana + GPT-Image

Based on v2 audit cluster recommendations · 2026-05-21

1 · Briefing

This brief turns the v2 audit's recommendations into copy-paste-ready prompts for two leading AI image generators — Nano Banana (Gemini 2.5 Flash Image) and GPT-Image (OpenAI's gpt-image-1). Four new gallery images are specified, each tied to a specific keyword cluster from the v2 audit that's currently underserved or mis-allocated.

Slot to buildCluster anchoredWhy this image
Slot 2 (new keystone)Bedroom (30.18%) + Baby (7.94%)Combined 38.12% traffic share with no current avatar lock. Highest-CVR cluster.
Slot 3 (new)Room coverage (3.13%) + Cool mist (5.81%)40-inch mist height / 300 sq ft has no dedicated frame. Cool mist (13.65% CVR) never visually cued.
Slot 5 (re-cast)Plants (3.49%)Zero current visual coverage despite 8–9% CVR. Pure additive demand.
Slot 7 split (new)Diffuser / aroma (6.40%, 47.9k weekly searches)Listing's biggest underused traffic source by an order of magnitude.

Two important caveats baked into every brief below:

  • AI image generators struggle with text overlays. Even Nano Banana and GPT-Image produce misspelled or wonky text. Every brief separates the AI prompt (for the photo) from the post-production overlay spec (headline + badge added in Canva/Photoshop/Figma).
  • Product fidelity matters. Both tools accept reference images. Each brief specifies which existing gallery image to attach as the product reference so the Dreo unit looks identical across the rebuilt stack.

2 · How to use this brief (workflow)

  1. Pick a tool. Use Nano Banana for fast iteration and natural compositions; use GPT-Image when you need tighter control over composition specifics (lens, depth of field, props). Run both on the same brief and pick the winner — generation cost is cheap relative to ad spend.
  2. Attach the reference image. Each slot brief names a specific image from the existing gallery to attach as the product reference. This preserves product identity (proportions, colour, display panel, brand mark) across the rebuilt stack.
  3. Paste the prompt. Copy from the tool-specific code block. Don't edit until you've seen the first render — both tools are sensitive to small wording changes.
  4. Iterate 3–5 times. Pick the hero render. If none of the 5 land, jump to Section 8 (iteration tips) before rewriting from scratch.
  5. Add overlays in post. Take the AI render into Canva / Photoshop / Figma. Add the headline, brand bar, and badge per the post-production spec. The exact copy is given in the overlay block for each slot.
  6. Run the QC checklist in Section 7 before uploading to Seller Central. Pay special attention to product fidelity (does it look like the actual SKU?) and the 100×100 thumbnail test.

3 · Shared production setup

Aspect ratio
Square 1:1 (Amazon requirement)
Final dimensions
2000×2000 px (Amazon zoom requirement; minimum 1600)
Format
JPG (sRGB, ≤10 MB) for gallery; PNG only if transparency is needed for compositing
Brand palette
Black product · warm cream backgrounds · soft caramel / peach accents · deep navy for night scenes. Match the existing Slot 3 nursery scene's colour register where possible.
Typography (overlays)
White sans-serif, semibold weight, mobile-safe sizing (headline 100–140px in a 2000×2000 canvas). Match current Dreo style.
Badge style
Pill or rounded-rectangle, translucent dark backdrop (RGBA 0,0,0,0.55), white text, sits in a fixed corner across the stack for visual consistency.
Brand bar
"DREO | Humidifier" at top of frame, white sans-serif, ~50–60px tall in 2000×2000. Already established style — preserve.

Reference image library

All 7 existing gallery images are embedded below for reference. Each slot brief specifies which one to attach when you run the AI prompt.

Slot 1
Slot 1 — Hero cutaway. Use as product-fidelity reference (the cleanest view of the unit's design language).
Slot 3
Slot 3 — Existing nursery scene. The visual template for Slot 2 (new). Use as the aesthetic reference, with product identity from Slot 1.
Slot 5
Slot 5 — Existing living-room lifestyle. The compositional template for the new Slot 3 (room coverage / wide bedroom shot).
Slot 7
Slot 7 — Existing top-fill demo. The compositional template for the new Slot 7-split (diffuser frame): same coffee-table setup, different focal action.

4 · Slot 2 (new keystone) — bedroom & nursery dual-lock

Bedroom 30.18%Baby 7.94% Combined 38.12% traffic share. Highest-CVR cluster on the listing (baby = 13.33% CVR).

Reference: current Slot 3
Reference image to attach: the existing Slot 3 nursery scene above. We want this aesthetic register — warm evening light, plush bunny, nursery cues — but with the unit re-photographed on a nightstand so it reads as a bedroom and nursery.
Nano Banana
Using the attached reference image as the product identity, place this black ultrasonic humidifier on a wooden nightstand inside a softly-lit bedroom that doubles as a nursery. The room is warm and serene — late evening, golden bedside lamp casting soft shadows, neutral linen bedding visible in soft focus on the left, a knitted plush bunny sitting next to the humidifier, small wooden toys subtly in the background. A delicate fine mist rises from the humidifier in a thin vertical column, gently lit by the unit's blue ambient internal glow. Atmosphere: peaceful, premium, sleep-conducive.

Photorealistic commercial product photography in the visual language of Muji and Aesop catalogues. Shallow depth of field, 85mm equivalent lens, f/2.8. Warm colour palette — cream, soft caramel, deep navy night-shadow.

No people in frame. No text or graphics overlaid on the image. Square 1:1 aspect ratio, render at 2000x2000.

Negative: harsh white daylight, clinical office settings, multiple competing products, watermarks, on-image text, cluttered scenes.
GPT-Image
A photorealistic high-end commercial product photograph for an Amazon listing.

Subject: a black ultrasonic humidifier (use attached reference image — preserve all proportions exactly: the rounded translucent dark body, the front display panel showing humidity readout, the DREO brand mark on the central column, the black base).

Setting: a softly-lit bedroom-nursery hybrid in late evening, around 9pm ambient. Wooden nightstand, neutral linen bedding visible in shallow blur on the left, soft monochrome wall behind.

Placement: humidifier centred on the nightstand, occupying ~35% of the frame. A fine vertical mist plume rises 30cm above the unit, faintly illuminated by the unit's internal blue glow.

Props: knitted plush bunny seated next to the humidifier on the left; a small wooden toy train half out-of-focus to the right; a thin paperback book.

Lighting: warm 3000K bedside lamp from frame-right casting soft directional shadows; subtle blue rim-light from the humidifier itself.

Camera: 85mm equivalent, f/2.8, eye-level. Shallow depth of field, product tack-sharp, background softly blurred.

Colour palette: cream, soft caramel, deep navy, charcoal.

Mood: peaceful, premium, restorative. Style: editorial product photography (Aesop / Muji visual language).

No people. No text overlays. Square 1:1, 2000x2000.

Post-production overlay (add in Canva / Photoshop)

Brand bar (top)
"DREO | Humidifier" — white text, ~50px height in 2000×2000, centred
Headline (centre, ranked)
  1. "The 26 dB humidifier built for bedrooms & nurseries." — A/B winner pick. Hits both clusters in one breath.
  2. "Bedroom-quiet at 26 dB. 30-hour runtime. Built for nurseries." — longer; ties three specs to one outcome.
  3. "For bedrooms. For nurseries. For sleep." — three-beat, emotional, voice-driven.
Risk-kill badge
Bottom-right corner pill: "26 dB · 300 sq ft · 30 h" — addresses all three top objections in one badge
Filename
dreo-humidifier-slot2-bedroom-nursery-uk.jpg
Alt text (≤100 chars)
"Dreo 26 dB ultrasonic humidifier on bedroom nightstand with plush bunny, built for nurseries"
Alt text v2
"Quiet humidifier for bedrooms and nurseries with 26 dB sleep mode and 30-hour runtime"

5 · Slot 3 (new) — room coverage & cool-mist demo

Room coverage 3.13%Cool mist 5.81% Combined 8.94% share. Cool mist has the highest CVR of any single-keyword cluster on the listing (13.65%) but no current visual cue.

Reference: current Slot 5
Reference image to attach: the existing Slot 5. We want the wide-scene composition but with the mist plume re-rendered as a clearly visible cool stream reaching across the room.
Nano Banana
Using the attached reference image as the product, photograph this black ultrasonic humidifier on a bedroom nightstand in the foreground (lower-right third of frame). The unit emits a clearly visible fine cool mist that rises 40 inches (1 metre) into the air and disperses across the room, faintly drifting toward the left side of the scene. The mist should be a photographable feature, not subtle — visible but not smoky.

Bedroom details: neutral linen bedding, a low headboard with soft pillow, monochrome wall, gentle evening light through sheer curtains on the right. Wide cinematic composition showing the room's depth.

Photorealistic commercial photography, 35mm equivalent lens, f/4 to keep both the unit and the mist trail in focus.

Cool but warm-biased palette: soft cream, dusty teal, warm taupe.

No people in frame. No on-image text. Square 1:1, 2000x2000.

Negative: smoke effect, fog, cramped composition, no visible mist, harsh light, multiple products.
GPT-Image
A wide bedroom interior product photograph for an Amazon listing.

Subject: a black ultrasonic humidifier (attached reference image — preserve all design details). Placement: foreground, lower-right third of frame, sitting on a wooden nightstand.

Action: the unit emits a clearly visible cool mist plume rising vertically 40 inches (about 1m) above the unit, then dispersing horizontally across the room toward the left side. The mist should be photographable, fine and white-bluish, not smoky.

Setting: a serene neutral-toned bedroom. Low headboard with linen bedding centre-frame, dusty-teal accent throw, warm taupe walls. Soft sheer curtains on the right diffusing evening daylight.

Composition: wide environmental shot showing the room's depth. The mist plume should curve up from the unit and into the room's volume.

Lighting: 4000K window light from the right, soft fall-off, mild shadows.

Camera: 35mm equivalent, f/4, eye-level, tripod-steady. Both the humidifier and the dispersing mist trail must be in acceptable focus.

Colour palette: soft cream, dusty teal, warm taupe.

Style: editorial home-interior photography, premium SKU register.

No people. No on-image text or graphics. Square 1:1, 2000x2000.

Post-production overlay

Brand bar (top)
"DREO | Humidifier"
Headline (top-centre)
"Cool mist that reaches every corner." — primary. Alternative: "5μm ultra-fine cool mist. Covers 300 sq ft."
Mist-height callout
Vertical arrow with label "40 in / 1 m" alongside the visible mist plume
Coverage badge
Bottom-right pill: "300 sq ft · 28 m²"
Optional
Small "5μm ultrafine" tag near the mist origin
Filename
dreo-humidifier-slot3-room-coverage-uk.jpg
Alt text (≤100 chars)
"Dreo humidifier with visible cool mist reaching 40 inches up, covers 300 sq ft bedroom"
Alt text v2
"Cool mist humidifier producing 5 micron mist for whole-room humidity coverage"

Alternative route (Figma / Illustrator, not AI): a top-down floor-plan diagram showing the 300 sq ft coverage radius. Lower production cost and unambiguous, but less emotional than the photographic version. Build both, A/B if traffic allows.

6 · Slot 5 (re-cast) — plants lifestyle

Plants 3.49% Pure additive. Currently zero visual coverage. CVR 8–9%. The single easiest cluster to unlock because there's nothing competing for the attention.

Reference: current Slot 5
Reference image to attach: the existing Slot 5. We're keeping the lifestyle register but replacing the empty-room props with a real plant ecosystem.
Nano Banana
Using the attached reference image, place this black ultrasonic humidifier at the centre of a bright indoor plant corner near a window. Surround it with 4-5 healthy live houseplants at varying heights: a tall monstera deliciosa to the right (about 1.5m), a snake plant directly behind the unit, a small Boston fern on the left, a trailing pothos cascading from a higher shelf, and a small succulent in front. The humidifier emits a gentle fine mist that visibly drifts toward and nourishes the foliage.

Late morning natural daylight, soft and even. Setting: a window-side corner of a contemporary home, sheer white curtains diffusing 5500K morning sun from the left, terracotta plant pots, light wooden flooring.

Photorealistic commercial photography in the visual language of plant-parent Pinterest accounts. 50mm equivalent lens, f/3.5, slight depth of field.

Atmosphere: alive, fresh, biophilic, "this product nourishes my plants too".

Colour palette: vibrant greens, terracotta, warm cream, soft natural light.

No people. No on-image text. Square 1:1, 2000x2000.

Negative: dark room, cluttered, fake-plastic-looking plants, harsh shadows, multiple competing products.
GPT-Image
A photorealistic styled lifestyle photograph for an Amazon listing.

Subject: a black ultrasonic humidifier (attached reference image — preserve product identity exactly) placed at the centre of an indoor plant corner.

Props (live healthy plants only, no plastic): a 1.5m monstera deliciosa on the right with characteristic split leaves; a snake plant directly behind the unit with vertical leaves; a small Boston fern on the left at table height; a trailing golden pothos cascading from a higher shelf in the upper-left; a small jade succulent on the floor in front.

The humidifier emits a fine visible mist that drifts toward the foliage, lit by morning light from the left.

Setting: a window-side corner of a contemporary home. Sheer white curtains diffusing 5500K morning sunlight from the left. Terracotta plant pots of varying sizes. Light wooden flooring. Cream-painted wall behind.

Lighting: soft natural daylight, even, no harsh shadows. Backlight slightly catching the mist.

Camera: 50mm equivalent, f/3.5, eye-level, slight wide-angle to show the plant ecosystem in context.

Colour palette: vibrant greens (multiple shades), terracotta, warm cream, soft daylight white.

Style: biophilic-design editorial, plant-parent lifestyle (think House Plant Journal, Patch Plants brand language).

No people. No on-image text. Square 1:1, 2000x2000.

Post-production overlay

Brand bar (top)
"DREO | Humidifier"
Headline (centre, ranked)
  1. "Built for plants. Built for sleep." — dual-purpose lock. A/B winner.
  2. "For plants. For people." — shortest, highest thumbnail legibility.
  3. "The humidifier your plants will thank you for." — voice-driven, plant-parent-coded.
Plant-compatibility row
Bottom strip with 4 small plant icons + labels: tropicals · ferns · orchids · seedlings
Optional callout
Small tag near the monstera: "5–10× the humidity your plants need" (if substantiable — otherwise drop)
Filename
dreo-humidifier-slot5-plants-uk.jpg
Alt text (≤100 chars)
"Dreo humidifier with monstera fern pothos plants, built for indoor houseplants and people"
Alt text v2
"Plant humidifier nourishing tropicals ferns and orchids with fine cool mist"

7 · Slot 7 split (new) — diffuser dedicated frame

Diffuser / aroma 6.40% 47,960 weekly UK searches across the cluster — bigger than humidifier itself (25,559). This is the listing's single biggest underused traffic source by an order of magnitude. One image plus an A+ module can plausibly double the catch rate on this cluster.

Reference: current Slot 7
Reference image to attach: the existing Slot 7. Same coffee-table setup and warm lighting — but the dominant action shifts from top-fill (already covered elsewhere) to the aroma-pad demonstration.
Nano Banana
Using the attached reference image, photograph this black ultrasonic humidifier on a light oak coffee table. The unit's circular top lid has been removed and placed beside it, exposing the round aroma diffuser pad tray inside the lid.

A female hand (light skin, neutral nail polish, casual) enters from the upper-right of the frame holding a small amber-glass essential oil dropper bottle. The dropper is mid-action, with 3-4 distinct amber droplets caught in mid-air, falling toward the aroma pad.

Props: two more small amber-glass dropper bottles (unbranded, decorative) sit on the table within the frame's right edge. A folded soft cream linen napkin.

Lighting: soft warm 4500K daylight from frame-left (afternoon window), gentle directional shadows.

Photorealistic commercial product photography. Shallow depth of field, 85mm equivalent lens, f/2.8, focused on the mid-air droplets and the aroma pad below.

Colour palette: warm amber, deep black, light oak wood, soft cream background.

Atmosphere: artisanal, premium, "this is also a diffuser".

No on-image text. Square 1:1, 2000x2000.

Negative: visible essential-oil brand labels, more than one hand, cluttered scene, harsh light, multiple competing products.
GPT-Image
A high-end product photograph for an Amazon listing.

Subject: a black ultrasonic humidifier (attached reference image — preserve all product details exactly). The unit's circular top lid has been lifted off and placed beside it on the table, exposing the round aroma-pad tray inside the lid.

Placement: centre-frame, the unit occupying ~40% of composition.

Action: a single female hand entering from the upper-right corner — light skin tone, neutral unpainted nails, casual posture — holding a small unbranded amber-glass essential oil dropper bottle. The dropper is mid-action with exactly 3 distinct amber droplets caught in mid-air, falling toward the aroma pad inside the lid.

Props: two more small amber-glass dropper bottles (unbranded, decorative) within the right edge of the frame. A folded soft cream linen napkin on the lower-left.

Setting: a light oak coffee table. Soft cream-painted wall in the background, slightly blurred.

Lighting: warm 4500K window light from frame-left, soft directional shadows, gentle highlight on the falling droplets to make them legible.

Camera: 85mm equivalent, f/2.8, focused on the mid-air droplets (which should be tack-sharp). The product and the hand are in acceptable focus; the background is softly blurred.

Colour palette: warm amber, deep black, light oak, soft cream.

Style: artisanal premium product photography (visual language of Aesop and Le Labo product shots).

No on-image text. Square 1:1, 2000x2000.

Post-production overlay

Brand bar (top)
"DREO | Humidifier"
Headline (centre, ranked)
  1. "Diffuser + Humidifier in one." — A/B winner. Hits both search clusters in one breath.
  2. "Add your favourite oil. Breathe deeper." — benefit-led; lighter compliance ground (no medical claim).
  3. "Humidifier by night. Diffuser by day." — positions the dual use as a daypart story.
3-step strip (bottom)
Three small numbered icons across the bottom: 1. Lift lid  ·  2. Add 3–5 drops  ·  3. Run
Compliance line
Small print under the strip: "Compatible with most water-soluble essential oils. Not a medical device."
Filename
dreo-humidifier-slot7-diffuser-uk.jpg
Alt text (≤100 chars)
"Dreo humidifier with built-in aroma diffuser tray and essential oil dropper, dual-use design"
Alt text v2
"Cool mist humidifier with essential oil diffuser pad for aromatherapy in bedroom"

8 · Pre-ship QC checklist

Run this before any image goes to Seller Central. Each item is a hard gate.

Product fidelity

  • Unit's silhouette, proportions, display panel, brand mark all match the actual SKU at first glance
  • Display readout (if visible) shows a plausible value (40–70% range — not the AI's hallucinated "62%" if the actual unit isn't running)
  • Mist plume volume / direction is physically plausible for an ultrasonic unit (vertical first, then horizontal drift)
  • No fictional features (extra buttons, screens, hose, etc. the actual product doesn't have)

Amazon compliance

  • 2000×2000 px square, JPG, sRGB, ≤10 MB
  • No medical claims on-image ("treats congestion", "relieves sinus", "cures dry skin" — all suppress-risk)
  • No fake badges ("#1 Best Seller", "Amazon's Choice", "Approved", "Certified" unless real)
  • No competitor brand names or look-alike trade dress (including on the oil bottles in Slot 7)
  • Every claim substantiated in bullets or A+ (no orphan claims on-image)
  • Slot 1 (hero) remains untouched — pure white background, single product, no overlay

Composition / readability

  • 100×100 thumbnail test: headline and badge still legible when the image is squashed to thumbnail size (the size shoppers see on mobile search results)
  • 3-second test: show the image to someone who has never seen the product. They should "get it" in under 3 seconds.
  • No critical text or product element within 5% of any edge (safe-margin)
  • Brand bar position is consistent across slots 2, 3, 5, 7 (top of frame, same height)
  • Badge position is consistent across slots (same corner, same pill style)

Inclusion / avatar fit

  • Hand in Slot 7 frames as "anyone" — neutral nails, ungendered casual styling
  • Nursery cues in Slot 2 don't lean on stereotypes (avoid pink-only or blue-only colour scheming)
  • Plant choices in Slot 5 read as everyday houseplants, not aspirational-collector rarities

Cross-stack consistency

  • Colour palette feels continuous from Slot 2 through Slot 7 (warm cream, soft caramel, charcoal — with deep navy for night scenes and vibrant green only in Slot 5)
  • Same product reference used across all four new slots — proportions identical, brand mark in same orientation
  • Mist appearance consistent: fine, white-bluish, vertical-then-drift (don't render it differently per slot)

9 · Iteration tips (when the AI render misses)

Both Nano Banana and GPT-Image are sensitive to small prompt changes. If the first 3–5 renders aren't landing, try these tweaks before rewriting from scratch.

Product fidelity is off

  • Re-attach the reference image and add: "The product must match the attached reference exactly: preserve the proportions, the front display panel, the dark translucent body, the brand mark position. Do not invent design elements."
  • If the AI keeps simplifying the product (especially Nano Banana), reduce the prop count by half. More props means more attention budget away from the product.

Mist looks like smoke / fog / vape

  • Add explicit descriptors: "fine, white-bluish water mist, photographable but not opaque, like a humidifier's actual output — not smoke or fog or vapour from a vape"
  • If too subtle, increase: "the mist is the second subject of the photo, clearly visible against the background"

Lighting is too clinical / too dark

  • For warm bedroom scenes: specify Kelvin: "3000K warm tungsten bedside lamp"
  • For plant lifestyle: specify "5500K diffused morning daylight through sheer curtains"
  • If too dark, add: "correctly exposed product, no underexposure, no harsh shadows on the unit itself"

Composition feels flat / catalogue-y

  • Add depth cues: "the foreground plant is in soft blur, the product is tack-sharp at the focal plane, the background drops off into shallow bokeh"
  • Specify a sight line: "camera positioned 30 degrees off-axis from the product, slight eye-level downward angle"

AI keeps adding text / logos / watermarks despite the negative

  • Move the "no text" instruction earlier in the prompt, before the composition cues
  • Repeat with stronger emphasis: "Critical: NO text, NO logos, NO watermarks, NO badges anywhere in the image. Text will be added in post-production."
  • For Nano Banana specifically: it's slightly more prone to adding rogue text — if persistent, accept and crop out in post, then overlay your own.

Hand in Slot 7 looks wrong

  • Hands are the hardest single element. Try: "a natural, anatomically correct female hand entering from the upper-right, casually holding the dropper, fingers natural and relaxed, no extra fingers, no morphed proportions"
  • If still wrong after 5 tries, switch to a product-only composition: omit the hand, place the dropper resting on the table mid-action with droplets in the air. Add the hand in compositing if needed.

Appendix · Reference

  • Source audit: Dreo_Image_Stack_Audit_v2.html (in this folder). All cluster percentages and CVR figures pulled from the v2 audit's keyword-evidence section.
  • Keyword data source: Sellersprite reverse-ASIN export, 108 keywords, UK (amazon.co.uk), last 7 days, exported 2026-05-21.
  • Tools referenced: Nano Banana (Gemini 2.5 Flash Image) via Google AI Studio or Vertex AI; GPT-Image (gpt-image-1) via OpenAI API or ChatGPT.
  • Both tools accept image inputs for reference conditioning — attach the named reference image when running each prompt.
  • Document version: 1.0. Date: 2026-05-21.