The cemetery is on a slightly concave ditch, high in the north and low in the south. The tomb is also facing south, and the left and right sides of the tomb are slightly higher. Is this feng shui ok?

Not afraid of the blue dragon, but afraid that the white tiger will grab one. There is nothing wrong with being high in the north and low in the south. Belongs to sitting north facing south. Before Suzaku, after Xuanwu. In fact, feng shui is not something you can do. You should observe according to the surrounding environment, find out the ins and outs and so on ... you are too perfunctory. I suggest you find a Feng Shui gentleman.