1girl, animal_ears, arms_behind_back, aston_machan_(umamusume), blush, breasts, brown_hair, buruma, closed_mouth, crown, green_eyes, gym_uniform, horse_ears, horse_girl, horse_tail, jacket, leaning_forward, long_sleeves, looking_at_viewer, mamezou_(tzakki023), medium_breasts, medium_hair, mini_crown, ponytail, red_jacket, shirt, smile, solo, tail, tracen_training_uniform, track_jacket, umamusume, white_background, white_shirt