Dark Fantasy Japanese Female Swordsman Katana Poster AI Image Prompt

Dark fantasy style. A lone Japanese-style female swordsman positioned slightly left of center, messy black long hair flying, head lowered and turned sideways, cold and repressed expression, wearing a loose, tattered white kimono robe, its hem and sleeves billowing dramatically in fierce wind and energy. The swordsman grips a slender katana with one hand; the sharp, elongated blade extends diagonally toward the lower right in a slash, becoming the visual focal point. The background is almost pure black, with deep red and dark blue intertwined smoke and ink merging into the darkness, partially occluded and cut by the character silhouette, cherry blossoms, energy threads, and particle effects, creating a strong poster-design feel and oppressive tension. A few floating pink cherry blossom petals contrast with the cold red and blue light. Overall atmosphere: mysterious, dangerous, fractured, fateful, oppressive yet gorgeous, like a frozen moment in an apocalyptic world. Dark aesthetic, cyber neon fused with Japanese fantasy, character poster, cinematic portrait lighting, cinematic narrative storytelling atmosphere, vignette details, emotional atmosphere, film grain, high-end gray cool tone, shallow depth of field, HD 8K, master-level portrait photography, game promotional image texture, ultra-high detail, extreme lighting, red-blue complementary colors, motion blur trails, energy burst, volumetric fog, particle effects, advanced composition, strong visual impact, masterpiece. No subtitles, no watermark.