Ultra-detailed biomechanical octopus: , sleek racing mech and steampunk aesthetic; Segmented matte white ceramic armor plates with micro-scratches and beveled edges; Fluorescent lime green accents and trim (A888 series), subtle status LEDs; Internal mechanics: carbon fiber fins, braided cables, coiled hoses, spinner bearings, stepper motors, hex and star fasteners, anodized aluminum hinges, black PVD-coated bolts; Translucent polycarbonate fins with subtle struts and light refraction; multi-layered plates, small antenna spikes, precision vents, recessed mushrooms; Abdomen with hub and wire harnesses reminiscent of a turbine; Tail composed of intertwined rings and cable harnesses Realistic wear at contact points; Hero Studio render, single object, all black seamless background, no environment; Cinematic lighting: cool key light from top front left, hard rim light from back right, subtle highlights on plastic and metal, high contrast; 8K, crystal sharp, photorealistic texturing, subsurface detail, global illumination, depth