Dark Fantasy Underworld Flame Sword Divine Dragon Poster AI Image Prompt

Horizontal composition, dark fantasy style. A figure positioned slightly left of center, long black hair flying messily, body facing forward, delicate facial features, handsome face, eyes emitting golden glow, cold and repressed expression, wearing a loose and tattered white robe, hem and sleeves fluttering greatly in the wild wind and energy. One hand holds a sword formed of underworld flame; the blade emits intense gold-silver dual-color neon light, sharp and slender, slashing diagonally toward the lower right of the frame and becoming the visual center. Around the figure coil blue-red flowing lights; the background is almost pure black; in the center of the background, a giant divine dragon is added, vertically stretched, occupying most of the space, dark red semi-transparent, blending into the dark background to create a strong poster design feel and sense of oppression. Overall atmosphere mysterious, dangerous, broken, fated, oppressive yet gorgeous, like a frozen moment in an apocalypse. Anime cinematic illustration, dark aesthetics, cyber neon fused with Japanese fantasy, character poster, game promotional image quality, ultra-high detail, extreme lighting, red-blue contrast colors, dynamic motion trails, energy explosion, volumetric fog, particle effects, advanced composition, strong visual impact, 8K, masterpiece. Hand-signed in the lower right corner: 神明