1girl alternate_costume animal_ears arms_behind_back black_bow black_bowtie blush bow bowtie breasts brown_eyes brown_hair cleavage collarbone commentary_request cowboy_shot detached_collar embarrassed hair_between_eyes hair_ornament highres horse_ears horse_tail looking_at_viewer nontraditional_playboy_bunny ribbon simple_background small_breasts smart_falcon_(umamusume) solo tail umamusume white_background yukia2