Wow, thank you ! It really does make a big difference !
I think in general having little defects that can be added on assets (manually or procedurally) helps a lot.
Even for things like trees and vegetation it could help to have a selection of small details that can be added on a layer on top of the main asset. Like little branches that stick out, or darker patches of leaves, bird nests, flowers, or fruits.
Especially to add variety to vegetation that is meant to be used as a barrier or background, like the forest between the car wash scene and the campsite from a few weeks ago.
Just throwing ideas out there :-)