1girl, animal_ears, bad_pixiv_id, bent_over, breasts, brown_hair, cleavage, collarbone, hair_between_eyes, hair_ornament, horse_ears, horse_tail, large_breasts, naked_towel, onsen, open_mouth, satono_diamond_(umamusume), solo, steam, tail, towel, umamusume, wakameland, yellow_eyes