"generation parameters": {

{
  "generation_parameters": {
    "topic": "Portrait Photography",
    "aspect_ratio": "3:4",
    "style_preset": "Flash Photography"
  },
  "subject_details": {
    "identity": {
      "name": "Ana de Armas",
      "type": "Woman"
    },
    "appearance": {
      "hair": {
        "color": "Dark",
        "length": "Long",
        "texture": "Straight"
      },
      "face": {
        "expression": "Soft"
      },
      "body": {
        "build_notes": "Large breasts"
      }

...