A 3D realistic rendering of a crystalline skull crafted from clear glass, with emerald green light radiating through, casting intricate reflections and refractions. This creates a glowing, semi-transparent effect on a deep, void-like backdrop. The image is rendered with Octane, showcasing its hallmark capability of producing lifelike, mesmerizing visuals. The scene evokes an enigmatic and futuristic aura, with ethereal mist swirling around, accentuating the skull's otherworldly presence.