1girl, animal_ears, arm_support, bare_arms, bare_legs, bare_shoulders, black_hair, blue_eyes, blue_one-piece_swimsuit, blush, bob_cut, breasts, cleavage, closed_mouth, collarbone, competition_school_swimsuit, covered_navel, ear_ribbon, eishin_flash_(umamusume), gradient_background, hair_between_eyes, horse_ears, horse_girl, horse_tail, katagirinanoka, large_breasts, looking_at_viewer, medium_hair, one-piece_swimsuit, school_swimsuit, simple_background, sitting, smile, solo, swept_bangs, swimsuit, tail, taut_clothes, taut_swimsuit, thighs, tracen_swimsuit, umamusume