Modern prison, solitary confinement cell, bleak atmosphere, cold grey walls, iron bars, narrow window, dim lighting, concrete floor, steel door, observation deck, CCTV cameras, metal detectors, barbed wire fencing, high-security perimeter, watchtower, searchlight beams, misty night, gloomy clouds, industrial architecture, brutalist style, fortress-like structure, rusted metal, cracked walls, overcast sky, dramatic shadows, cinematic composition.