1girl animal_ears bangs blurry blurry_background blush brown_hair closed_mouth depth_of_field doughnut_pillow from_side green_eyes green_sweater hairband highres horse_ears long_hair long_sleeves looking_at_viewer looking_to_the_side lying on_stomach pillow silence_suzuka_(umamusume) sleeves_past_wrists smile solo sweater tadano_tarako umamusume upper_body white_hairband