Chibi Gym Selfie in Ultra-Realistic 3D

{
  "image_prompt": {
    "subject": {
      "character_type": "chibi boy",
      "action": "taking a mirror selfie",
      "pose": [
        "relaxed casual pose",
        "head slightly tilted down looking at phone"
      ],
      "clothing": {
        "top": "black and yellow windbreaker hoodie with the hood up",
        "headwear": "black cap underneath the hood",
        "bottom": "black training shorts, athletic legs visible"
      },
      "accessories": [
        "dumbbell held in one hand",
        "smartphone"
      ]
    },
    "environment": {
      "setting": "modern gym",
      "foreground": "rows of dumbbells",
      "background": "modern gym equipment",
      "architectural_elements": [
        "large wall mirror reflection",
        "wooden floor",
        "large windows"
      ]
    },
    "lighting": {
      "style": "cinematic lighting",
      "sources": [
        "soft natural daylight from large windows"
      ]
    },
    "technical_specifications": {
      "style": "ultra-realistic 3D render",
      "aesthetic": "gym lifestyle",
      "camera": {
        "lens": "50mm lens",
        "effects": [
          "depth of field",
          "realistic reflections"
        ]
      },
      "rendering": {
        "engines": [
          "octane render",
          "unreal engine quality"
        ],
        "resolution": "8k",
        "details": [
          "photorealistic 3D",
          "ultra-detailed",
          "highly detailed skin textures",
          "highly detailed fabric textures"
        ]
      }
    }
  }
}