1girl, animal_ears, bare_shoulders, beach, brown_hair, cowboy_shot, dual_wielding, grin, hair_between_eyes, holding, holding_water_gun, horse_ears, horse_girl, horse_tail, long_hair, nakayama_festa_(entrust_myself_to_the_dice)_(umamusume), nakayama_festa_(umamusume), official_alternate_costume, purple_eyes, smile, solo, swimsuit, tail, umamusume, water_gun, yoshiaki_(yosiaki_ml)