swordsmaiden, long white hair, eyes closed, sitting, bulky tree behind, resting on back on a (strong tree), (bloodstained) katana planted to the ground, fields of flower, angiosperms, gymnosperm, dense forrest, [light particles], motes, ambient atmosphere, natural world, (pixiv contest winner, masterpiece), (best quality), perfect hands, 4k, hd, hdr, scenery, blurry background, octane render, sharp contrast