1girl arm_up asymmetrical_breasts bangs bikini blue_hair blush breasts grey_background hair_tubes highres kantai_collection kouga_(mutsumi) large_breasts long_hair looking_at_viewer mizuho_(kancolle) multicolored_hair parted_lips purple_hair sidelocks simple_background solo swimsuit untied untied_bikini very_long_hair wet yellow_bikini