Legendary ghost knight wallpaper portrait, powerful and invincible, brutal and epic composition, digital painting with dramatic and gloomy atmosphere, emotionally profound with volumetric lighting, intense and brooding dark tones, leaving a haunting impression on psyche, high quality and high-resolution, meticulously detailed, mysterious presence, spectral glow, ethereal armor, blending seamlessly with a shadowy backdrop, excluding unnecessary distractions, maintaining flawless anatomy and precise proportions, devoid of text, names, signatures, watermarks, maintaining pristine visual clarity.