1girl, alternate_costume, animal_ears, aston_machan_(umamusume), blush, breasts, brown_hair, cleavage, dress, ear_ornament, green_eyes, horse_ears, horse_girl, horse_tail, inuyama_nanami, large_breasts, leaning_forward, looking_at_viewer, no_headwear, red_dress, short_hair, short_sleeves, side_ponytail, simple_background, solo, sweat, tail, towel, towel_around_neck, umamusume, white_background