What feng shui should be put in the backyard of the house? Ask for expert advice, thank you very much!

When was it built? If the mountains are lush, you can't build a water pool or fish pond behind the house. Mountains rule people's wealth. If you build a pool behind the house, it is not good for people's health. If Fortune Star and Ding Xing sit together, a big pond can be built. But a beautiful rockery should be built behind the pond. Yun: "Ji Shen entered the government first and became rich. Gong Yue is priceless."