1girl, ahoge, arm_behind_back, bandeau, bikini, blonde_hair, blue_background, border, collarbone, cowboy_shot, green_eyes, long_hair, looking_at_viewer, navel, o-ring, o-ring_top, polka_dot, polka_dot_bikini, side-tie_bikini, smile, solo, standing, swimsuit, thigh_gap, untying