1girl alternate_costume animal_ears arm_up armpits beret blush breasts brown_hair commentary cosplay gloves hair_ornament hairclip hat highres horse_ears horse_girl horse_tail matikane_tannhauser_(umamusume) medium_breasts medium_hair mejiro_dober_(umamusume) mejiro_dober_(umamusume)_(cosplay) solo sweat tail tail_wagging tonousa translation_request umamusume