Wallpaper portrait of a legendary ghost knight, exuding power and invincibility with an epic and brutal composition; digital painting characterized by dramatic, gloomy, and emotionally profound themes. Volumetric lighting enhances the intense and brooding dark tones, leaving an indelible and haunting impression on the psyche. Rendered in high quality, high resolution, with a focus on meticulous detail; avoid unnecessary elements such as duplicates, poorly drawn anatomy, text, names, signatures, watermarks, low quality features, or noticeable jpeg artifacts.