"Create a detailed 3D model of the steampunk submarine 'Nautilus' with precise, smooth geometry. The hull features brass and copper plating, rivets, propellers, steam vents, and external piping. The deck includes gears, valves, and a periscope. Glowing portholes and Victorian engravings enhance the design. The composition is artistically balanced, with aged metal, oxidation, and polished brass textures. Exclude background.