1girl, arm_support, bikini, blue_bikini, blush, breasts, cleavage, collarbone, feet_out_of_frame, green_hair, halterneck, head_tilt, idolmaster, idolmaster_cinderella_girls, knees_up, long_hair, looking_at_viewer, medium_breasts, ohishi_izumi, ponytail, side-tie_bikini_bottom, simple_background, sitting, smile, solo, swimsuit, waving, white_background, yama_tatsuo