Anime swordswoman on misty mountain under full moon

Beautiful adult female swordswoman, long midnight-blue hair, elegant dark kimono-inspired warrior outfit, standing on a misty mountain beneath a huge full moon, katana reflecting silver moonlight, drifting fog and falling leaves, calm powerful expression, luminous anime eyes, dramatic rim lighting, atmospheric Japanese landscape, cinematic dark fantasy composition, ultra-detailed anime artwork, 4K UHD, HDR, vertical 9:16, no text, no watermark.