Calligraphy style is often related to the opportunities of calligraphers, and Tian Yingzhang's works are extensive and profound. Both Sima Yan and Tian Yingzhang started from Ou Kai. But Si Mayan's running script is simple and exquisite. Tian Yingzhang's running script is written in European characters, while Si Mayan's running script is integrated with official script.
The above picture shows the Lao people's running script, written in, with "Lang" and "Red" on the left and "Moon" and "Lou" on the right.
Si Mayan's running script is tortuous and changeable, which is suitable for fast writing. Generally speaking, Sima Yan and Tian Yingzhang have not changed much. The ancients regarded the brushwork of Wang Xizhi and Zhao Mengfu as authentic. The quality of calligraphy is a matter of subjective judgment.