AI-generated tattoo project presents a hyper-realistic mechanical hand and forearm, a fusion of biology and machine. The design shows an artificial limb assembled from interlocking gears, pistons, cables, and hydraulic tubes, rendered in black and grey with restrained red accents that highlight key joints. The diorama-like composition flows diagonally across a torn-paper backdrop, creating dynamic motion and the impression of a blueprint brought to life. Each finger segment is formed as a cluster of jointed plates and pistons, delivering a sense of weight, precision, and tactile realism that is characteristic of realistic tattoo style. The metal surface is treated with crisp linework, high-contrast shading, and subtle gradient transitions to mimic polished chrome and brushed steel, while thin wires weave around the forearm to suggest energy transfer and connectivity. The piece employs a pattern-like rhythm of repeating circular motifs—gears, sleeves of tubing, and segmented links—that add cohesion and a sense of mechanical harmony to the composition. Symbolically, the design explores themes of transhumanism, invention, and resilience, inviting viewers to ponder the boundary between human flesh and engineered construct. It is well-suited for a large forearm canvas or as a focal piece in a sleeve, especially for fans of fine line tattoos and black and grey realism. As an AI-generated tattoo project, it demonstrates contemporary possibilities in custom tattoo design, offering meaningful tattoos that merge science, artistry, and personal identity. For tattoo enthusiasts, this piece delivers a striking balance of modern industrial aesthetics with timeless body art language, aligning with styles such as Japanese-inspired shading, black and grey realism, and bold mechanical motifs within the broader spectrum of ink and body art.