1girl, animal_ears, blue_background, breasts, brown_hair, brown_thighhighs, cowboy_shot, daiwa_scarlet_(umamusume), epaulettes, hair_ornament, hand_up, horse_ears, horse_girl, horse_tail, large_breasts, long_hair, long_sleeves, looking_at_viewer, mer4, open_mouth, red_eyes, smile, solo, tail, thighhighs, thighs, twintails, umamusume, white_thighhighs