1girl, alternate_costume, animal_ears, aston_machan_(umamusume), beach, bent_over, bikini, blurry, blurry_background, breasts, cleavage, collarbone, green_eyes, hair_ornament, horse_ears, horse_girl, horse_tail, large_breasts, lens_flare, looking_at_viewer, medium_hair, navel, ocean, solo, swimsuit, tabunshake, tail, umamusume