Ask the expert to analyze the geomantic omen of this building in the lower corner, how to solve it?

Neither of the two sand table maps you gave indicates the direction of sitting on the mountain, which really can't give you a solution. Generally speaking, this is a triangle. From the perspective of geomantic omen, don't choose a house at the tip of a triangle. If it is positive, it is even worse. If it is in the opposite direction, it will be a fierce position, and the car accident will avoid disaster, and the wealth work will not be smooth. Suggest choosing another property.