Is the neighborhood behind the house feng shui good?

You think too much. Behind your house is the gate of the community, which is very good. It's not a cemetery that is better than anything else. Don't be paranoid. The so-called geomantic omen is based on the underground rock stratum where you live and whether the place where you live is an earthquake-prone zone or a flood-prone zone since ancient times. If only your feng shui was good! For example, there have been no earthquakes in the six ancient capitals of our country for hundreds of years. I wish you happiness.