A detailed Halloween fantasy illustration of a tall skeletal figure with a blue tattered coat adorned with silver wires and spikes. He stands menacingly in a foggy night landscape surrounded by glowing jack-o’-lanterns. His skull has fiery orange eyes and flaming hair, and he wields a glowing orange sword made of molten iron. The background features a dark, shadowy castle and drifting mist. Cinematic lighting, high detail, moody atmosphere, ethereal glow, fantasy art, gothic tone, Halloween aesthetic, 4k, ultra-detailed, dynamic composition.

no cartoon style, no low resolution, no blurry details, no text, no watermark, no extra limbs, no deformed bones, no disfigured face, no modern clothing, no bright daylight, no cheerful expression, no flat lighting, no cropped image, no cluttered background.