A real photograph in backlit-rain portrait photography, captured with a full-frame sensor, natural 85mm perspective, shallow depth of field, fine grain and lifelike water texture. A fictional adult at a desk in a square: a man in his forties with a shaved head and a beard in a plain dark sweater, head and shoulders, sitting at a desk beside a large window streaming with rain, a laptop and a mug in front of him, looking out at the rain with a calm, thoughtful expression, a dim grey city softly blurred beyond the glass.
Light: one restrained rear-side light catching individual raindrops on the window at varied depths against darker tones, light fading beyond the illuminated rain with subtle shade across the room, clear tonal separation, natural colour and lifelike water texture.
Square 1:1 frame, centred composition with breathing room on all sides. Fictional adults only, fully clothed in everyday clothes, natural realistic features, no readable text, logos, name badges or signs.