1girl, alternate_costume, animal_ears, blush, breasts, casual, collarbone, daiwa_scarlet_(umamusume), embarrassed, hair_between_eyes, hair_ornament, horse_ears, horse_tail, large_breasts, like_an_ero-doujin, looking_at_viewer, nose_blush, okiha18, open_mouth, red_eyes, solo, sweat, tail, tiara, twintails, umamusume, wall