Hyper-realistic Gym Portrait of a Shy Girl

A highly structured JSON prompt for Nano Banana Pro to generate a hyper-realistic, cinematic portrait of a fictional fitness model in a gym setting. The prompt specifies detailed wardrobe (grey sports bra, ribbed brown shorts), pose (sitting on a fitness chair, V sign), lighting (cinematic, high contrast), and texture details (realistic skin and fabric), while explicitly constraining the output to avoid real person identity matching.

Prompt

{
  "task": "image_generation",
  "style": {
    "resolution": "8K",
    "look": "hyper-realistic, cinematic",
    "photorealism": true
  },
  "subject": {
    "identity": "fictional fitness model",
    "inspiration": "use the face without any change",
    "gender": "female",
    "skin_tone": "fair",
    "pose": {
      "Sit on a fitness chair and smile happily in the direction of the camera, making a V sign hand gesture
    },
    "expression": "serious",
    "makeup": {
      "eyeliner": "winged",
      "finish": "natural cinematic"
    },
    "hair": {
      "color": "{argument name="hair color" default="honey-brown"}",
      "style": "bun",
      "accessory": "hair clip"
    }
  },
  "wardrobe": {
    "top": {
      "type": "sports bra",
      "color": "{argument name="top color" default="grey"}",
      "design": "multi-strap"
    },
    "bottom": {
      "type": "shorts",
      "fit": "tight, high-waist",
      "texture": "ribbed",
      "color": "brown"
    },
    "socks": {
      "type": "thigh-high",
      "color": "black",
      "details": "red stripes"
    }
  },
  "environment": {
    "location": "gym",
    "background_elements": [
      "red metal rack"
    ],
    "atmosphere": "cinematic, moody"
  },
  "camera": {
    "lens": "85mm",
    "depth_of_field": "shallow",
    "focus": "sharp on subject"
  },
  "lighting": {
    "type": "cinematic",
    "key": "soft directional",
    "contrast": "high",
    "highlights": "controlled"
  },
  "detail": {
    "skin": "ultra-detailed, realistic texture",
    "fabric": "high micro-detail"
  },
  "composition": {
    "aspect_ratio": "3:4",
    "framing": "portrait"
  },
  "constraints": {
    "no_real_person_identity": true,
    "no_face_matching": true
  }
}

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