nanashi_ishi umamusume silence_suzuka_(umamusume) 1girl alternate_costume animal_ears black_shirt breasts green_eyes hairband horse_ears horse_girl horse_tail light_smile long_hair long_sleeves looking_at_viewer navel orange_hair pantyhose shirt shorts simple_background small_breasts solo stomach tail thighs white_background absurdres commentary highres making-of_available self-upload