{
"version": "1.0",
"subject": {
"preserve_identity": true,
"preserve_face": true,
"keep_hair": true,
"instruction": "Use exactly the face and the body of the person in the photo sent. Do not alter the features of the face, the shape of the nose, the eyes and the mouth, the skin tone, the hair or the body type. Do not make the person younger or slimmer and do not replace them with someone else.",
"expression": "intense and explosive, the mouth open in a cry of effort, the eyes fixed on the hoop"
},
"scene": "a street basketball court at dusk, a metal backboard with a chain net, a high fence, low buildings and an orange and purple sky in the background",
"action": "at the peak of the jump, one hand dunking the ball into the hoop and the other open for balance, the body stretched in the air, the chain net starting to swing",
"wardrobe": "a plain basketball vest in petrol blue with a generic single-digit number, matching baggy shorts, high-top trainers with no logos and a thin wristband",
"lighting": "orange late-afternoon light coming from behind, strong backlight on the silhouette, dust and particles shining in the air, a long shadow on the concrete",
"composition": "a low angle in vertical 3:4 orientation, the camera low near the base of the hoop looking up, the player on the central axis and open sky behind",
"quality": "realistic cinematic high-resolution sports photography, a fast shutter, high contrast, warm dusk colours, sharp focus on the athlete",
"negative_prompt": "AI artefacts, low resolution, plastic skin, deformed hands, extra fingers, watermark, logo, illegible text, a real team name, a logo on the kit, a hoop at the wrong height, an elongated arm, the ball going through the backboard"
}
How to use
Send your photo in the same message where you paste this JSON, in NanoBanana, in Gemini or in ChatGPT. A full-body photo is ideal, because the image shows you stretched in the air; with only a portrait the AI keeps the face and invents the body, which sometimes changes your build. The prompt delivers a dunk on a street court at dusk, with a chain net swinging, a fence, low buildings behind and an orange and purple sky in backlight.
To adjust it, play with "wardrobe" and choose the colours of the vest, the generic number and the model of the trainers, always without a logo. In "scene" you can swap the street for a gym with stands or put the court at night, under floodlights. And in "action" you can ask for a three-pointer, a dribble or the celebration right after the basket. It also works by sending only the photo and asking for a picture of yourself dunking on the court.
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