Skull demon sorcerer portrait concept art inspired by Terese Nielsen, Brom, and Miho Hirano, featuring hyperdetailed gothic art with triadic colors. Created in Unreal Engine 5 as a detailed matte painting on a dark black background, incorporating elements of art nouveau with deep, fantastical colors. Intricate detailing is emphasized, suitable for a splash screen with complementary colors. This fantasy concept art is a gothic masterpiece, ideal for DeviantArt, with an ornate border and vivid colors. Rendered in 16k UHD with HDR10, showcasing absurd resolution. The character has a surreal appearance with a long neck, extra fingers, and a mystic aura, avoiding low resolution, blurry imagery, or any elements like watermarks or logos. The composition is complete without cropping or splitting images, emphasizing the fantasy theme without cartoonish or disfigured features.