Well if you can hide them like you did im sure it could be fine.
You should just put something up on the wall, my homie has something like that at his crib. They have a fence on the side of his house where there is like a lil alley that leads to his backyard, and he has neighbors on the other side with the same type deal.
The neighbors rent the garage to people and right on the other side is where they come in and out, so we put up these tarp type things so they cant see over or thru the fence.
Gonna be running some outdoor there so we needed to put something up.