Skull demon sorcerer concept art portrait by Terese Nielsen, Brom, Miho Hirano, hyper-detailed intricately detailed gothic art trending on Artstation, utilizing triadic colors, Unreal Engine 5 detailed matte painting with a dark black velvet background. Embrace the art nouveau aesthetic with deep color and fantastical elements, showcasing intricate details suitable for a splash screen. Incorporate complementary colors for a fantasy concept art look, achieving a gothic DeviantArt masterpiece with vivid colors in 16k resolution, UHD, and HDR10. Inspired by ReV Animated v1. 21, the design features a slightly elongated neck and exaggerated hand details for an otherworldly essence, avoiding typical art pitfalls like low resolution, blurry aspects, and distracting elements such as watermarks or text overlays. The final result should be a stunning visual representation, capturing the essence of gothic fantasy with mesmerizing detail and rich color contrasts.