1girl, animal_ears, arm_up, breasts, brown_eyes, brown_hair, clenched_hands, crop_top, hair_ornament, hairclip, headband, horse_ears, horse_girl, horse_tail, kazuto_(tzgp8384), looking_at_viewer, matikane_tannhauser_(blue_turbulence)_(umamusume), matikane_tannhauser_(umamusume), medium_breasts, medium_hair, midriff, navel, official_alternate_costume, official_alternate_hairstyle, open_mouth, outdoors, sky, solo, tail, twitter_username, umamusume