Eight characters: Wuzi, Wuwu, Dingchou and Bingwu
Five elements: earth, water, earth, fire, earth, fire and fire
Deficiency: metal and wood
The personalities of heaven and earth are all described by names
The names I give now are based on the eight characters and the five elements
Zhang Yuanshuang, Zhang Yuanjing, Zhang Fuwei, Zhang Yuou, Zhang Jinglin, Zhang Ranyao, Zhang Biyi, Zhang Shuangrui Zhang Rongqing Zhang Yutong