"image generation": {

{
  "image_generation": {
    "subject": {
      "description": "young woman standing at the entrance of a subway staircase in a city",
      "pose": "standing on subway steps, body facing downward, head turned back over shoulder",
      "expression": "calm, slightly curious, thoughtful",
      "gaze": "looking directly at the camera"
    },
    "appearance": {
      "hair": {
        "color": "light brown",
        "style": "shoulder-length wavy hair with bangs"
      },
      "face": {
        "skin_tone": "fair",
        "makeup": "natural makeup with subtle definition"
   

...