1girl :d armpits arms_up ass_visible_through_thighs bad_id bad_pixiv_id barefoot beach bikini blue_sky blush brown_hair cloud cloudy_sky collarbone commentary_request dark-skinned_female dark_skin day fang frilled_bikini frills hair_ribbon jumping kantai_collection libeccio_(kancolle) long_hair navel official_alternate_costume open_mouth outdoors ponpon_(tosico) purple_eyes ribbon sky smile solo swimsuit thigh_gap twintails