1940s pilot 3d model

Head-and-shoulders bust of a 1940s civilian aircraft pilot. Realistic proportions, neutral pose, facing forward. The pilot wears a vintage leather flying helmet with visible stitching and soft folds, snugly fitted to the head. Large round aviation goggles rest on the forehead, with metallic frames, glass lenses, and a leather strap wrapping around the helmet. The face has a calm, confident expression, clean-shaven, with natural skin texture and subtle aging lines. Clothing includes a thick 1940s flight jacket collar made of leather with a soft fabric lining visible at the edges. Materials should emphasize worn leather, brushed metal, and realistic skin shading. Sculpted detail optimized for small-scale printing. The model must be a solid, watertight mesh suitable for 3D printing. Total height from base of shoulders to top of head must be exactly 4 cm. Base should be flat and level for stable placement. Moderate polygon density with clean topology. No extreme thin parts.