Enhance the reflections of passing metro train windows on the man's face. Add multiple bright horizontal bands of moving light crossing his eyes, cheeks and forehead, as if illuminated train windows are rapidly passing in front of him. Increase the light reflections inside the eyes and add stronger catchlights in the irises. Create alternating bands of light and shadow across the face to emphasize the feeling of a train moving at high speed. Preserve the exact facial features, eye shape, skin texture, hairstyle and composition. Do not change the pose, expression or camera angle. Ultra realistic cinematic lighting, subtle emotional tension, movie-quality realism.
Make it immediately obvious that the man is watching illuminated train windows passing in front of him.
