A full body shot of a mysterious void arcanist stands amidst swirling, ethereal mists, their garments flowing with dark, shimmering hues. The hyper-detailed character is enveloped in an aura of magical energy, with intricate patterns glowing faintly on their skin. The scene is rendered with photorealistic precision and depth, using octane render techniques to create ultra-realistic textures and light reflections. Volumetric lighting casts dramatic shadows and highlights the arcanist's enigmatic expression, while the fantasy art setting adds an otherworldly atmosphere, enhancing the sense of mystical allure unique to this realm. The design subtly integrates elements like arcane glyphs and eldritch symbols woven into the fabric, hinting at the character's ancient power and celestial knowledge.