Prompt JSON estructurado para retrato cinematográfico ártico

```json
{
  "project_metadata": {
    "output_format": "RAW_Photography",
    "version": "3.0_High_Fidelity",
    "aspect_ratio": "3:4",
    "style_preset": "Cinematic_Portrait"
  },
  "subject_definition": {
    "identity": {
      "biometrics": {
        "gender": "Female",
        "apparent_age": "20-25",
        "ethnicity_profile": "Northern European"
      },
      "face_mapping": {
        "eyes": { "iris_color": "Crystal Blue", "expression": "Intense, direct" },
        "skin": {
          "texture_type": "Hyper-detailed dermis",
          "imperfections": ["Freckles", "Cold-induced flushing"],
          "moisture_level": "Slightly damp from snow"
        },
        "hair": {
          "base_color": "Blonde",
          "state": "Messy/Wind-swept",
          "interaction": "Tucked under goggle strap with wisps framing face"
        }
      }
    },
    "styling_layers": {
      "layer_0_skin": "Natural pink lips, unadorned",
      "layer_1_base": {
        "item": "Knit Turtleneck",
        "color": "Tan",
        "texture": "Vertical ribbing"
      },
      "layer_2_outer": {
        "item": "Parka/Coat",
        "accent": "Brown faux fur collar",
        "interaction": "Snow-dusted"
      },
      "accessories": {
        "item": "Ski Goggles",
        "frame": "Tan Matte",
        "lens": "Brown Mirror Finish",
        "placement": "Forehead"
      }
    }
  },
  "environment_simulation": {
    "geography": {
      "primary_location": "Alpine mountain slope",
      "background_elements": ["Snow-capped peaks", "Basalt rock outcrops"],
      "depth_mapping": "Extreme bokeh/background blur"
    },
    "particle_effects": {
      "type": "Fresh powder snow",
      "placement": ["Fur collar fibers", "Hair strands", "Goggle edges"]
    },
    "lighting_engine": {
      "source": "Overcast daylight",
      "diffusion": "High (soft shadows)",
      "color_temp": "6500k (Cool winter tones)",
      "highlights": "Reflective glints on snow crystals and goggles"
    }
  },
  "optical_parameters": {
    "camera_specs": {
      "lens_type": "85mm Prime",
      "aperture": "f/1.8",
      "shot_distance": "Close-up (CU)",
      "focus_priority": "Iris of the eyes"
    },
    "render_passes": [
      "Subsurface scattering (skin)",
      "Micro-displacement (knit texture)",
      "Volumetric cold air haze",
      "Individual follicle rendering"
    ],
    "mood_profile": ["Serene", "Arctic", "Exploration", "High-Contrast"]
  }
}
```