Your 2d people collection is really good. Can we also have a good collection of 2d trees and plants as well with same concept. That will be very helpful for large scenes it will look more realistic than low poly trees.
Actually lowpoly trees kills the realism
I use 2d alfa trees addon in blender which is very good.
I work with large subdivisions that require large surrounding areas. It would be great to have 2D vegetation to make the model light. My last work had 13 billion faces and ran at 2fps on an RTX 3090.