1girl, animal_ears, blue_background, breasts, brown_hair, closed_mouth, covered_navel, gradient_background, grey_background, hairband, hand_on_own_chest, horse_ears, horse_girl, horse_tail, leotard, long_hair, looking_at_viewer, medium_breasts, mihono_bourbon_(umamusume), necktie, pink_necktie, smile, solo, tail, umamusume, usukawa_(uskw_sr), white_hairband, white_leotard