1girl, ;), animal_ears, black_ribbon, contrail, crop_top, dog_tags, ear_ribbon, horse_ears, horse_girl, horse_tail, long_hair, lying, mayano_top_gun_(umamusume), midriff, navel, on_back, one_eye_closed, orange_eyes, orange_hair, partially_submerged, ribbon, salute, short_shorts, shorts, sleeveless, smile, solo, soranishi_hiro, tail, two_side_up, umamusume, white_shorts