1girl, ahoge, animal_ears, armpits, arms_behind_head, blue_eyes, breasts, brown_hair, commentary_request, commission, hairband, highres, horse_ears, horse_girl, leotard, long_hair, mihono_bourbon_(umamusume), necktie, sion_(9117), skeb_commission, solo, umamusume, upper_body, white_background, white_leotard