Yang Zi and Guan Xiaotong's art examination photos back then, have they changed much compared with now? Yang Zi and Guan Xiaotong's art examination photos back then, have they changed much compared with now? Yang Zi and Guan Xiaotong's art examination photos back then, have they changed much compared with now? Yang Zi and Guan Xiaotong's art examination photos back then, have they changed much compared with now?