A hyper-realistic 3D image of a crystalline glass skull, intricately detailed with prismatic facets, casting and refracting azure light that permeates its transparent structure. Suspended against a void-like obsidian backdrop, the skull seems to levitate, emanating an ethereal glow that suggests an otherworldly essence. Enhanced by the Octane rendering engine, the scene delivers a cinematic and enigmatic ambiance, capturing a fusion of futuristic sci-fi allure with an air of ancient mystique, as light dances unpredictably across the glass surface.