"subject": {

{
  "subject": {
    "identity": "User-provided likeness",
    "expression": "Serene, effortlessly seductive",
    "gaze": "Direct, meeting the camera",
    "pose": "Lying on a bed, supporting weight on arms"
  },
  "styling": {
    "apparel": {
      "item": "Cozy knit sweater",
      "color": "Off-white",
      "style": "Off-the-shoulder, relaxe

...