A dramatic, gothic castle silhouetted against a turbulent, stormy sky. Jagged, dark stone towers pierce the bruised purple and deep grey clouds, hints of sickly green lightning illuminating the edges. The castle is perched precariously on a rocky outcrop overlooking a dark, foreboding forest that seems to stretch into an abyss. Mist clings to the lower parts of the castle and the surrounding landscape, adding to the sense of isolation and ancient dread. The overall mood is oppressive and mysterious, with a focus on texture and atmosphere. Square 1024x1024 format, high detail, painterly style with a touch of photorealism.