{
"version": "1.0",
"subject": {
"reference_image": "",
"preserve_architecture": true,
"keep_layout": true,
"keep_windows_and_doors": true,
"keep_room_proportions": true,
"transform": "decor, furniture, colours, lighting and textures"
},
"style": {
"name": "cosy and welcoming",
"palette": "earthy tones, warm beige, caramel and soft brown",
"furniture": "a double bed with an upholstered headboard, a wooden bedside table and a soft reading armchair",
"lighting": "warm indirect lighting, bedside lamps and a discreet string of lights",
"textiles": "soft cotton bedding, a heavy throw, plenty of cushions and a shaggy rug",
"decor": "small plants, candles, stacked books and cosy prints",
"mood": "warm, intimate and relaxing"
},
"composition": "a realistic wide-angle interior photo, the same perspective as the photo sent, free ratio",
"quality": "a high quality interior render/photo, realistic lighting, convincing materials",
"negative_prompt": "real brands, logos, text, watermark, floating furniture, distorted perspective, crooked walls, deformed objects, people"
}
How to use
A cosy bedroom is the one with earthy tones, warm light and soft textures, and you can simulate all of that on the photo of your own room with Gemini, NanoBanana or ChatGPT.
1. Paste the JSON prompt into the image generator along with a photo of your bedroom, in the same message.
2. Adjust the "palette" if you prefer cooler tones and swap the bedding and the cushions described in "textiles".
3. Generate the image and notice that the AI preserves windows, doors and proportions, touching only the decor.
4. Ask for variations by changing the "lighting" to something brighter or more intimate until you find the right mood.
5. Save the versions you like most and use them as a reference when buying bedding, lighting and furniture.
Tip: try one version with a string of lights and one without, to decide how much cosiness suits you.
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