1girl, blush, breasts, collarbone, dress, falling_petals, floating_hair, flower, happy_birthday, head_wreath, holding, holding_flower, idolmaster, idolmaster_cinderella_girls, jougasaki_mika, long_hair, looking_at_viewer, medium_breasts, oekakispica, petals, pink_hair, signature, simple_background, smile, solo, straight_hair, strapless, strapless_dress, twitter_username, upper_body, white_dress, yellow_eyes