Anime character with long white hair and a sword in a dark room

(best quality, masterpiece), (1girl, solo,brown robe, expression face, looking away, sitting, wide sleeves, black eyes, closed mouth, ribbon shape fire on head, long hair, cowboy shot), (Monochrome, night sky at cave entrance , light rising from the bottom, inside Cave, floating glowing bunch of white particles, burning fire at hand, floating many small fires),

(artist name), (worst quality, low quality:1.4), multi arms