1girl, animal_ears, blush, brown_hair, closed_mouth, feet_out_of_frame, horse_ears, horse_girl, horse_tail, hugging_own_legs, looking_at_viewer, medium_hair, mimi_(usausamm5), nice_nature_(umamusume), red_shorts, shirt, short_sleeves, shorts, simple_background, sitting, solo, tail, umamusume, white_background, white_shirt, yellow_eyes