1girl, arched_back, ass, back, back_cutout, bare_arms, bare_shoulders, black_hair, black_one-piece_swimsuit, blurry, breasts, clothing_cutout, competition_swimsuit, cowboy_shot, depth_of_field, from_behind, high_ponytail, highleg, highleg_swimsuit, idolmaster, idolmaster_shiny_colors, large_breasts, long_hair, looking_at_viewer, looking_back, marinesnow, one-piece_swimsuit, ponytail, racerback, shirase_sakuya, solo, standing, swimsuit, yellow_eyes