3girls, >_<, animal_ears, asato_(fadeless), bare_shoulders, bikini, biwa_hayahide_(umamusume), black_hair, blue_eyes, blush, bnw_(umamusume), breasts, brown_hair, building, candle, cellphone, chair, cleavage, closed_mouth, grey_hair, groin, holding, holding_phone, horse_ears, horse_girl, horse_tail, long_hair, looking_at_viewer, lounge_chair, medium_breasts, multiple_girls, narita_taishin_(umamusume), navel, night, outdoors, palm_tree, phone, pool, short_hair, sitting, small_breasts, smartphone, solo_focus, star_(sky), swimsuit, tail, tree, umamusume, water, winning_ticket_(umamusume), wristband