Natsuko Masaki, masterpiece, best quality, a mature sexy model posing fully naked by a rocks near the hot spa, 1girl, breasts, ass, nipples, onsen, nude, from behind, solo, wet hair, outdoor, looking at viewer, water, wading, sweat, smile, blurry, ,long straight hair, black hair, brown eyes, left forehead hairstyle, long-slitted and narrow eyes, slender face, medium breasts, slender body, beautiful tits, beautiful ass

EasyNegative, FastNegativeV2, bad-artist-anime, bad-hands-5, lowres, bad anatomy, bad hands, text, error, missing fingers, extra digit, fewer digits, cropped, jpeg artifacts, signature, watermark, username, blurry, out of focus, censorship, Missing vagina, Blurry faces, Blank faces, bad face, Ugly, extra ear, amputee, missing hands, missing arms, missing legs, Extra fingers, 6 fingers, Extra feet, Missing nipples, ghost, futanari, Extra legs, Extra hands, panties,pants, (painting by bad-artist-anime:0.9), (painting by bad-artist:0.9), text, error, blurry, jpeg artifacts, cropped, normal quality, artist name, (worst quality, low quality:1.4),twisted_hands,fused_fingers,Face Shadow,NSFW,(worst quality:2), (low quality:2), (normal quality:2),