An absolute definitive masterpiece of a life-sized, hyper-detailed mechanical cheetah crouching in a museum display. Its body is crafted from polished 24k yellow gold and matte obsidian plates, while its iconic spots are made of deeply reflective, brilliant blue sapphires that catch the sharp gallery lights. The feline's eyes are glowing emerald gems radiating a subtle internal light, focused directly on the camera. The background is a moody, dark marble hall with volumetric dust motes floating in the air. High-fidelity metal reflections, ray-traced lighting, Arri Alexa 65 cinematography look, 16k resolution, sharp focus on the golden predator's face, undisputed realism.