Arafed man sitting in a chair in a library reading a book

(photorealistic:1.2,fictitious:0.9,)computer geek portrait, in a modest setting, male, short hair, unshaved, smart-looking, piercing brown eyes, thoroughly-defined jawline, long nose, convincing expression, friendly smile, unathletic figure, casual dressed, sitting in a simple armchair with a sturdy laptop in front of him, soft diffused warm white lighting, warm color scheme, spartanic interior decor, bookshelf in the background, linux artwork on the wall, natural sunlight streaming through the window, a hint of mystery in the atmosphere.