1girl, ahoge, alternate_costume, armpits, arms_behind_head, arms_up, artist_name, bikini, border, breasts, brown_hair, cleavage, closed_mouth, dated, kantai_collection, kongou_(kancolle), large_breasts, long_hair, looking_at_viewer, one_eye_closed, outdoors, purple_eyes, sky, solo, swimsuit, taira_yuuki, very_long_hair, white_border