A photorealistic depiction of a void arcanist character enveloped in swirling mist, rendered in stunning detail using Octane Render and Unreal Engine. The scene is brought to life with hyper-detailed textures and enhanced by volumetric lighting, casting ethereal glows through the mist. The arcanist, clad in dark, intricate robes adorned with celestial patterns, stands poised as if wielding ancient power. Their eyes emit a faint luminescence, contrasting with the inky void surrounding them. The composition is captured in HDR, emphasizing the dramatic play of light and shadow, with a cinematic 9:16 aspect ratio that immerses the viewer in this mystical realm.