1girl, d, animal_ears, antenna_hair, barefoot, blue_one-piece_swimsuit, blush, breasts, cleavage, collarbone, competition_school_swimsuit, covered_navel, daiwa_scarlet_(umamusume), fang, feet, foot_out_of_frame, horse_ears, horse_girl, large_breasts, looking_at_viewer, nonco, one-piece_swimsuit, red_eyes, red_hair, school_swimsuit, simple_background, sitting, skin_fang, smile, soles, solo, swimsuit, toes, tracen_swimsuit, twintails, umamusume, water, white_background