A black and grey biomechanical Hannya mask with sharp horns, glowing eyes, and mechanical textures, in a tattoo design style.

A black and grey tattoo design of a biomechanical Hannya mask, blending traditional Japanese oni mask features with biomechanical elements. The mask should have menacing, sharp horns, fierce eyes, and an open mouth showing teeth, but with mechanical textures like gears, wires, and plating seamlessly integrated into the face. Shading should be smooth and detailed, with high-contrast black and grey tones to create depth and a realistic, intimidating effect. See more