Underground brutalist metro station, raw concrete walls, exposed ductwork, industrial metal beams, rugged stone flooring, worn wooden benches, dimly lit atmosphere, cold neon lighting, urban grittiness, moody color palette, dark grey tones, industrial blue hues, earthy brown shades, rusty orange accents, weathered steel textures, distressed finishes, functional design, utilitarian aesthetic, brutalist architecture, metropolitan cityscape.