Our front lawn is just average. My dad takes care of it more than the back.
The only thing don't like about the back is that he plants trees closed in together. It may be an OCD of mine, so but I feel for the trees and I don't want the neighbors to complain. :-( I know this topic was meant for front but I consider back as front too if you didn't had a fence and there's one near where I live which is a first for me. ;-)
What kind of trees are they, Tomonag, and how close together are they. Obviously there's an optiaml sapcing for all trees. but they can grow very well., even if they are very close together. I have a holly, and Irish yew and an budllea tree, which I planted very close together when they were very small. Now they are very big and are still growing well. Maybe, if they had more space, they might even be better.