martypcsr, maruzensky (hot summer night) (umamusume), maruzensky (umamusume), umamusume, highres, 1girl, animal ears, armpits, arms up, bikini, black bikini, blue sky, blush, bracelet, breasts, brown-tinted eyewear, brown hair, cleavage, cloud, ear ornament, eyewear on head, flower, frilled bikini, frilled thigh strap, frills, grin, heart, heart-shaped eyewear, horse ears, horse girl, horse tail, jewelry, large breasts, long hair, looking at viewer, navel, necklace, ocean, official alternate costume, one eye closed, open mouth, orange-tinted eyewear, outdoors, palm leaf, palm tree, ponytail, sky, smile, solo, stomach, sunglasses, swimsuit, tail, thigh strap, tinted eyewear, tree, water, wet, white-framed eyewear