1girl, animal_ears, arms_behind_back, banhuaaidie, bare_shoulders, bikini, blush, breasts, brown_eyes, brown_hair, cleavage, closed_mouth, collarbone, daiwa_scarlet_(trifle_vacation)_(umamusume), daiwa_scarlet_(umamusume), eyelashes, feet_out_of_frame, frilled_bikini, frills, hair_between_eyes, hair_intakes, hair_ornament, head_tilt, horse_ears, horse_girl, large_breasts, layered_bikini, long_hair, looking_away, navel, official_alternate_costume, red_bikini, red_ribbon, ribbon, self_cosplay, sitting, smile, solo, swimsuit, twintails, umamusume, wide_hips