1girl, animal_ears, arm_support, ass_visible_through_thighs, bare_arms, bare_legs, bare_shoulders, bikini, breasts, brown_hair, cleavage, earrings, front-tie_bikini_top, front-tie_top, green_bikini, halterneck, horse_ears, horse_girl, horse_tail, jewelry, kusanagi_kaoru, long_hair, looking_at_viewer, medium_breasts, multicolored_hair, navel, open_mouth, outstretched_arm, purple_eyes, reaching, reaching_towards_viewer, side-tie_bikini_bottom, single_earring, sitting, solo, speech_bubble, stomach, streaked_hair, swimsuit, symboli_rudolf_(umamusume), tail, umamusume