1girl, arms_behind_head, blue_one-piece_swimsuit, blush, breasts, brown_hair, collarbone, competition_swimsuit, dated, hair_flaps, hairband, highleg, highleg_swimsuit, impossible_clothes, impossible_swimsuit, kantai_collection, large_breasts, long_hair, montemasa, one-hour_drawing_challenge, one-piece_swimsuit, open_mouth, orange_eyes, red_hairband, shiratsuyu_(kancolle), shiratsuyu_kai_ni_(kancolle), smile, solo, swimsuit, twitter_username, two-tone_background, two-tone_swimsuit, white_background, yellow_background