An AI-generated tattoo project concept in black and grey, this mechanical leg design blends realistic linework with industrial biomech motifs. The piece runs from the calf to the foot, exposing a dense lattice of gears, pistons, screws, and cables that seem to power the limb beneath skin. Crisp outlines define every component while grayscale shading creates metallic depth, with chrome highlights and deep shadows that read as machinery. Interlocking cog wheels anchor the joints, hydraulic pistons imply motion, and structural frames connect segments into a cohesive leg sleeve idea. The biomechanical silhouette pairs the leg’s natural curves with rigid machine geometry, symbolizing resilience and the fusion of flesh with technology. Throughout the design, elements flow along the limb in a disciplined rhythm, evoking motion and energy as if the leg itself were a powered engine. Negative space and deliberate contrast help keep the composition legible on skin, making it suitable for a full-leg sleeve with careful planning. This concept aims for a realistic tattoo look, leveraging bold blacks and subtle midtones to simulate metal surfaces and fasteners. As an AI-driven concept, it provides a clear blueprint for a custom tattoo design adaptable to anatomy and client meaning, inviting interpretations of endurance, transformation, and human-technology synergy. The piece also invites tattoos as a personal talisman, blending mechanical elegance with meaningful narratives.