Темный, мрачный, фотореалистичный портрет (задание).

Create a dark, moody, photorealistic portrait of a young man (early 20s, slim face, pale skin, soft sharp jawline, messy medium-length wavy dark hair partially covering forehead). He is seated on a simple wooden chair, body slightly turned sideways, head tilted downward, eyes cast toward his hands in a contemplative, melancholic expression. He wears a black high-neck turtleneck under a long black overcoat with soft matte fabric. Normal wavy hair. Background is a rough, textured wall with subtle stains and uneven paint, desaturated green-gray tones. Lighting is extremely low-key, coming from a soft side source (left side), creating deep shadows that partially obscure facial features while still keeping them faintly visible. Composition is medium shot, slightly off center framing. Add heavy film grain, analog noise, subtle blur, and muted color grading. Keep everything natural and realistic: no stylization, no extra elements, no modern sharpness. Extremely grainy. Maintain consistent shadows, realistic proportions, and a raw cinematic atmosphere with imperfect texture and slight noise artifacts.