1girl, ahoge, animal_ears, arm_support, bare_shoulders, beach, blue_eyes, blue_sky, breasts, cleavage, closed_mouth, cloud, collarbone, day, horse_ears, horse_girl, horse_tail, large_breasts, long_hair, looking_at_viewer, mihono_bourbon_(umamusume), nabe_puyo, navel, ocean, outdoors, reclining, red_hair, sitting, sky, smile, solo, tail, umamusume, water