This bold black-and-grey tattoo design fuses anatomy with engineered geometry in a single striking composition. Three skulls are stacked within a metallic frame, their hollow eye sockets catching light while red accents hint at circuitry beneath the surface. Crisp gears and pistons run along the length, creating a pattern-like rhythm from crown to base, while meticulous shading and precise line work deliver a near-photorealistic impression of bone and steel. The piece relies on strong contrast, layered gradients, and clean edges to maximize depth, making it a powerful option for a cover-up where dense dark areas help disguise older ink while preserving a clear focal point. Symbolically, skulls represent mortality and resilience, while the machine elements suggest a fused identity—an ideal theme for meaningful tattoos, custom tattoo design, and body art. This design suits large canvases such as the forearm or calf and pairs well with black-and-grey realism, industrial aesthetic, or Japanese-inspired cyber motifs. For publication or portfolio use, the composition reads as a technical study in negative space and structure, with the mechanical components forming a cohesive, eye-catching pattern and ink. Note: this is an AI-generated tattoo project.