1girl, animal_ears, aston_machan_(umamusume), blush, breasts, brown_hair, buruma, green_eyes, gym_uniform, hair_between_eyes, hair_ornament, heavy_breathing, horse_ears, horse_girl, large_breasts, looking_at_viewer, open_mouth, ririsu082, solo, steaming_body, sweat, thighhighs, tracen_training_uniform, umamusume