"image request": {

{
  "image_request": {
    "identity_lock": {
      "face_reference": "Use the uploaded reference image",
      "constraints": [
        "Preserve exact facial features",
        "No face alteration",
        "No morphing or beautification",
        "Maintain true bone structure, proportions, and asymmetry"
      ]
    },
    "subject": {
      "type": "Adult woman Sydney Sweeney ",
      "style": "Luxury high-fashion editorial portrait"
    },
    "face_and_expression": {
      "features": "Striking, refined facial features identical to reference",
      "expression": "Calm, confident, elegant",
      "skin": {
        "finish": "Natural, flawless, realistic texture",
        "tone": "Warm, even, unedited"
      }
    },
    "makeup": {
      "style": "Luxury nude makeup",
      "color_palette":

...