A mysterious void arcanist shrouded in swirling mist, their ethereal form intricately detailed with swirling patterns and glowing runes, casting an otherworldly aura. The scene is captured in photorealistic detail using a high-fidelity render engine, with exquisite care given to textures and reflections. Volumetric lighting creates a dynamic interplay of shadows and light, enhancing the arcane energy emanating from the character. The atmosphere is rich with HDR effects, intensifying the mystical ambiance of the setting. The aspect ratio is 9:16, adding a dramatic verticality to the scene, emphasizing the enigmatic presence of the arcanist.