1girl, animal_ears, arms_behind_head, blush, breasts, brown_hair, daiwa_scarlet_(umamusume), fang, frills, hair_intakes, hand_in_own_hair, hands_in_hair, horse_ears, horse_girl, horse_tail, kshimu, large_breasts, long_hair, open_mouth, red_eyes, simple_background, solo, sweat, tail, tiara, twintails, umamusume, very_long_hair, white_background