The trees ar FAR too big - some measuring more than 25 m. Unless these are not single trees, though I thought that is what they were meant to be. I think you could reduce these by a factor of 3 at least.
Single trees get merged together and sometimes groups of them look like single even larger trees.
But actually these single trees are supposed to be treated as clusters of greenery or "micro groves". Why would anyone want to have every tree in a city to be mapped?
The scale in the generator is probably wrong. Buildings often seem way too large.
