Archmagos Belisarius Cawl standing at the center of a vast Mechanicus cathedral-forge on Mars. A towering, inhuman silhouette composed of layered red robes, countless mechadendrites, servo-arms and data-cables radiating outward like a technological halo. His face partially human, partially replaced by cold machinery, glowing augmetic eyes filled with ancient calculation. Arcane machinery, Primaris gene-vats and stasis-coffins loom behind him in shadow. Floating holo-schematics, binary code, and sacred equations surround his form like a digital choir. Subtle green and blue data-light contrasts with red Martian glow. Atmosphere of forbidden progress, calculated heresy, godlike intellect. Grimdark Warhammer 40K style, ultra-detailed, high contrast lighting, cinematic composition, oppressive scale, dark sci-fi religious aesthetic. No heroism — only cold logic, inevitability, and machine faith. Negative prompt: cartoon, anime, clean sci-fi, heroic fantasy, bright colors, soft lighting, smiling face, low detail, simplistic armor, generic robot, modern UI, cyberpunk neon