A hyper-realistic character design of a void arcanist enveloped in swirling mist, with intricate, ethereal details highlighted by volumetric lighting. Rendered with Octane and Unreal Engine, the scene captures the mystical aura of the arcanist, with HDR effects enhancing the depth and realism. The arcanist wears an elaborate robe with glowing runes, their eyes shimmering in the dim light of the void. The composition is arranged in a 9:16 aspect ratio, creating a towering presence that emphasizes the character’s enigmatic and powerful nature.