1girl, animal_ears, anshinzawa_sasami, arm_ribbon, arm_under_breasts, aston_machan_(umamusume), bikini, bikini_skirt, black_choker, blue_sky, blush, brown_hair, choker, closed_mouth, cloud, crown, doll, frilled_bikini, frills, green_eyes, holding, holding_doll, horse_ears, horse_girl, horse_tail, kita_(kitairoha), layered_bikini, looking_at_viewer, medium_hair, mini_crown, navel, outdoors, ponytail, red_nails, ribbon, sky, smile, stomach, swimsuit, tail, thigh_strap, thighs, umamusume, v, wading, water, wet, white_bikini, wrist_ribbon