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Vintage Evening Flash Portrait Transformation Prompt

Vintage Evening Flash Portrait Transformation Prompt
πŸ“ Prompt Template
{
"meta":{
"quality":"High-Definition",
"type":"Evening indoor flash portrait",
"ratio":"4:5 vertical",
"device":"iPhone 16 Pro",
"style_reference":"Transform the INPUT PHOTO into this exact aesthetic.",
"look":"Evening flash, warm-toned vintage, real grain, realistic skin texture (NO smoothing)."
},

"identity_lock":{
"preserve_face": true,
"strict": true,
"rules":[
"The face MUST remain IDENTICAL to the input photo.",
"No changes to facial structure, proportions, expression, or identity.",
"No smoothing, no beautify, no retouch, no AI facial alterations."
]
},

"skin_texture_rules":{
"keep_texture": true,
"no_smoothing": true,
"no_blur": true,
"realistic_details": "natural texture preserved.",
"flash_behavior":"Flash highlights should reveal texture, not hide it."
},

"vintage_effect":{
"warmth":"[warmth]",
"contrast":"[contrast]",
"highlights":"[highlights]",
"shadows":"[shadows]",
"grain":"[grain]",
"vignette":"[vignette]",
"color_grade":"[color grade]",
"sharpness":"[sharpness]"
},

"global_context":{
"scene_description":"[scene description]",
"time_of_day":"[time of day]",
"lighting":"[lighting]",
"environment_details":[
"[environment detail 1]",
"[environment detail 2]",
"[environment detail 3]",
"[environment detail 4]"
]
},

"composition":{
"camera_angle":"[camera angle]",
"framing":"[framing]",
"pose":"[pose]",
"expression":"[expression]",
"flash_effect":"[flash effect]"
},

"subject":{
"makeup":{
"style":"[makeup style]",
"lips":"[lips]",
"eyes":"[eyes]",
"blush":"[blush]"
},
"skin":"[skin]",
"outfit":{
"dress":"[dress]",
"fabric_behavior":"[fabric behavior]"
}
},

"background_objects":[
{
"id":"mirror",
"description":"[mirror description]",
"lighting":"[mirror lighting]"
},
{
"id":"flowers",
"description":"[flowers description]"
},
{
"id":"wall",
"description":"[wall description]"
}
],

"rules":{
"identity_constant": true,
"no_face_change": true,
"no_ai_artifacts": true,
"realism":"[realism]"
}
}
Use the uploaded photo as the input image. Generate the image.
πŸ’‘ About This Prompt

An extensive JSON prompt for Gemini Nano Banana, designed for image-to-image transformation. It applies a warm-toned, film-like vintage aesthetic with harsh flash lighting and realistic grain to an input photo, while strictly preserving the subject's facial identity and skin texture (no smoothing or AI alterations).

Z
Zaylee
@zaylee
Metadata
Published Jun 12, 2026
Model
Nano Banana Pro 10 cr/run
Category
Portrait
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