Create a detailed 3D model of a humanoid robot with a dark, damaged green exoskeleton that combines mechanical and organic elements. The robot features multiple long, articulated legs resembling spider legs, with veins intertwined with mechanical parts, creating a creepy appearance. Atop the robot sits a human head, grotesquely reattached to the machine, with exaggerated, unsettling facial features. The eyes should glow ominously red,