Giant titan bound in an underground dystopian prison

A dystopian underground prison complex, reminiscent of Enki Bilal's graphic novels, is shrouded in a desaturated palette of cold grey-blue and rusted metal tones. Crumbling brutalist architecture blends with eerie alien organic growths, while a massive titan, imprisoned and fused with corroded machinery and tubes, bears an exhausted and haunted expression. Heavy iron shackles, connected to enormous industrial chains bolted into the walls, reinforce the oppressive and claustrophobic atmosphere. Amidst the bleakness, a single intensely glowing neon red eyes stands out as the only vibrant color in the scene, biopunk dystopia, cinematic composition, two tiny silhouetted human figures below for scale, ultra detailed illustration