1girl, d, animal_ears, arms_up, breasts, brown_eyes, cowboy_shot, gym_shorts, gym_uniform, horse_ears, horse_girl, horse_tail, jacket, looking_at_viewer, mayano_top_gun_(umamusume), midriff, motsutoko, navel, open_mouth, orange_hair, red_shorts, shirt, short_sleeves, shorts, simple_background, small_breasts, smile, solo, standing, stomach, sweat, tail, teeth, tied_shirt, tracen_training_uniform, two_side_up, umamusume, unworn_jacket, upper_teeth_only, white_background, white_shirt, yellow_eyes