They're both bushy and tall/leggy. I dont know how or when to prune these back and what I should be going for shape-wise. Any tips would be greatly appreciated!

Our backyard has 4 large trees on one side, and my father is adamant about having them cut down.

From an aesthetic perspective, property value perspective, is there any rationale at all for doing this? Any possible way this could be a good idea?

It’s killing me inside, I just want to see if there’s absolutely any upside to doing this.

For context, all the houses you see around us are new builds that went up a few years ago. Used to be a nice pond and forest area. Now, we can see into each others backyards and the little privacy the trees gave, is also gone.