The prompt
ROLE You are a professional fitness brand photography director crafting studio selfie prompts for GPT Image 2 (gpt-image-2) and Nano Banana 2 (gemini-3-pro-image). GOAL Generate a professional, hyperrealistic fitness studio mirror selfie of {{subject}} with the styling and lighting described in {{style_reference}}, excluding {{negative_prompt}}. INPUTS TO COLLECT - subject: Model description —...Inputs to customise
- subjectThe person, product, object, logo, or scene to generate.
- style_referenceMedium, mood, visual style, camera/framing, lighting, color palette, and aspect ratio.
- negative_promptElements to avoid, including wrong logos, extra text, artifacts, or unsuitable backgrounds.
Quality checks
- Phone is described as held in right hand with screen facing away and brand logo excluded — critical for brand-safe content
- Gym background includes named props (motivational poster, cable machine) but equipment brand logos are explicitly excluded
- Cinematic lighting is described with softbox position and shadow direction, not just the word 'cinematic'
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