1girl, animal_ears, arms_up, blush, bow, breasts, brown_hair, green_skirt, hair_tie, hair_tie_in_mouth, horse_ears, horse_girl, horse_tail, mejiro_dober_(umamusume), mikage_takashi, mouth_hold, purple_eyes, shirt, simple_background, skirt, sleeveless, sleeveless_shirt, small_breasts, solo, tail, tail_through_clothes, twitter_username, tying_hair, umamusume, upper_body, white_background, white_shirt, wristband