1girl, animal_ears, aqua_eyes, asato_(fadeless), bare_shoulders, bikini, black_bikini, blush, breasts, cleavage, cloud, cowboy_shot, day, eyewear_on_head, hand_up, heart, heart-shaped_eyewear, horse_ears, horse_girl, horse_tail, index_finger_raised, jewelry, large_breasts, long_hair, looking_at_viewer, maruzensky_(blasting_off_summer_night)_(umamusume), maruzensky_(umamusume), multi-strapped_bikini, navel, official_alternate_costume, one_eye_closed, outdoors, palm_tree, pendant, solo, sunglasses, swimsuit, tail, thigh_strap, tree, umamusume, wristband