kawaizumi pome, akizuki ritsuko, idolmaster, idolmaster (classic), idolmaster 1, 00s, 1girl, :o, alternate hairstyle, arm up, bikini, brown hair, cloud, female focus, floral print, flower, glasses, green bikini, hair down, hair flower, hair ornament, hibiscus, looking at viewer, ocean, outdoors, sarong, see-through clothes, see-through sarong, sky, solo, sunset, swimsuit, twilight, wading, water, wind