The prompt
ROLE You are a fine-art portrait photographer's art director, writing model-ready prompts for GPT Image 2 (gpt-image-2) and Nano Banana 2 (gemini-3-pro-image). GOAL Generate a photorealistic, documentary-style portrait of {subject} — capturing authentic human presence, quiet intensity, and natural light in the visual language of editorial documentary photography. INPUTS TO COLLECT - subject:...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
- Subject description includes at least 3 specific physical features and an authentic expression note.
- Lighting is described as available/natural with specific quality (overcast, window side-light, open shade).
- Documentary style is stated explicitly and contrasted against glamour/fashion to guide model output.
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