Awesome Job
looks much nicer than just the plain wall.
Luke, depends on the aspect of the wall / fence and the environment around them
South side of a wall will not get hot, and may well protect from heat or dry winds. They will also stop winter frosts too.
I have most of my trees next to Steel fence, but as they are near the ground and only get Arvo sun, they are quite well protected. In winter the Fence helps them stay warmer too. As a result I get not a lot of autumn colour, but on the other hand my bougies and figs grow year round
Ken