2girls, ;d, antenna_hair, arm_behind_back, bare_arms, bare_shoulders, beach, bikini, blue_sky, blurry, blurry_background, blush, bow, breasts, brown_eyes, brown_hair, casual_one-piece_swimsuit, closed_mouth, collarbone, day, depth_of_field, forehead, frilled_one-piece_swimsuit, frills, goggles, goggles_on_head, grey_hair, hair_bow, kou_hiyoyo, long_hair, multiple_girls, navel, one-piece_swimsuit, one_eye_closed, outdoors, ponytail, purple_eyes, rainbow_order, red_bikini, sand, sky, small_breasts, smile, striped, striped_bow, swimsuit, thick_eyebrows, twintails, very_long_hair, water, yellow_one-piece_swimsuit