
The red lines are what I would change. The blues are what you seemed to have.
I really like the grass, but the trees, aside from the rightmost one and middle-left one, don't seem to match the same...y' know, feel. They're kinda cartoony on top of that realistic grass. You see how all your trees go into the ground with a kind of downward curve? That's mostly what makes them look like they're top-down. Also the way some of the leaves hang down and overlap the trunks.
Mmm...I dunno...take what you will. Hope I helped.
(oh yeah, that one tree had a branch that looked a bit gimpy. I gave it some muscle. Felt sorry for the li'l branch, ya know?

)