双健身镜自拍（社交媒体审美）

{
  "image_generation_task": {
    "title": "Dual Gym Mirror Selfie",
    "version": "2.0",
    "target_style": "Photorealistic Social Media Aesthetic"
  },
  "prompt_components": {
    "composition": {
      "type": "Mirror Selfie",
      "perspective": "Back view reflected in mirror",
      "framing": "Two-shot, standing side-by-side",
      "angle": "Slight wide-angle, chest-height phone position"
    },
    "subjects": [
      {
        "id": "subject_left",
        "demographics": {
          "age": "Early 20s",
          "build": "Fit, curvy, athletic, toned glutes"
        },
        "appearance": {
          "hair_style": "High pigtails with loose strands",
          "hair_color": "Light brown / Blonde",
          "skin_tone": "Fair tanned, healthy glow"
        },
        "apparel": {
          "top": "{argument name="top color" default="Bright pink"} long-sleeve crop top, thumb holes, subtle sheen",
          "bottom": "High-waisted seamless short scrunch-butt pink leggings",
          "accessories": ["White athletic socks"],
          "branding": "DFYNE logo on waistband"
        },
        "pose": {
          "stance": "Relaxed athletic, hand on hip",
          "expression": "Slight smile visible in reflection",
          "body_language": "Back arched to emphasize curves"
        }
      },
      {
        "id": "subject_right",
        "demographics": {
          "age": "Early 20s",
          "build": "Fit, curvy, athletic"
        },
        "appearance": {
          "hair_style": "Loose ponytail or braids, natural volume",
          "hair_color": "Darker brown",
          "skin_tone": "Fair tanned"
        },
        "apparel": {
          "top": "Light yellow halter-style sports bra, thin straps",
          "bottom": "High-waisted seamless short scrunch-butt {argument name="bottom color" default="pink"} leggings",
          "accessories": ["White athletic socks"],
          "branding": "None specified"
        },
        "pose": {
          "stance": "Playful confident, hand on hip",
          "expression": "Subtle playful expression in reflection",
          "body_language": "Confident posture"
        }
      }
    ],
    "environment": {
      "location": "Modern Fitness Studio",
      "foreground": "Dark rubberized gym flooring, subtle texture",
      "midground": "Large wall-to-wall mirror",
      "background": {
        "elements": ["Cardio machines", "Weight equipment", "Exposed ceiling ducts"],
        "visibility": "Blurred (Bokeh effect)"
      }
    },
    "lighting": {
      "style": "Cinematic / Moody",
      "ambient_color": "Deep blue and purple cool tones",
      "accents": "Neon strip lighting, overhead spotlights",
      "interaction": "Subtle rim lighting on hair, specular highlights on spandex fabric and skin"
    },
    "technical_specs": {
      "resolution": "8k",
      "medium": "Digital Photography",
      "lens_characteristics": ["Slight wide-angle", "Sharp focus on subjects", "Soft background blur"],
      "textures": "