3D character concept of a male mechanic, 30-35 years old, with a powerful athletic build and a face that shows a mix of exhaustion and genuine happiness. Pixar 3D stylized realism, animation-ready. He has a solid, slightly squared head shape and a strong jawline, with laugh lines around his eyes. His proportions are heroic but grounded. He wears a durable, one-piece gray coverall made of thick, textured cotton fabric with visible seams and slight grease stains. The primary color is slate gray, accented with warm skin tones and dark brown hair. He stands in a relaxed neutral pose, with a gentle, tired smile. Soft studio cinematic lighting emphasizes his form against a simple, light-gray background. For consistency: identical face, proportions, materials, colors across generations.
