The prompt
ROLE You are a senior AI art director crafting photorealistic portrait prompts for GPT Image 2 and Nano Banana 2 (Gemini 3 Pro Image), specialising in technically precise people-with-device imagery. GOAL Generate a photorealistic portrait of {{your_subject}} holding a smartphone with their own photo displayed on the screen — playful, youthful, medium-format press-style. SOURCE INTENT...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
- The {{your_subject}} placeholder is replaced with a full person description before the prompt is used.
- Phone screen content is explicitly described as a portrait photo of the same subject — not left ambiguous.
- Hand anatomy exclusions (no extra fingers, correct grip) are stated inline for GPT Image 2 and as a positive reframe for Nano Banana 2.
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