Are you people blind? The trees and bushes are 100% perfect. The one thing I don't like though is that rock...it doesn't look...rocky...
Dude, don't talk like that. I know many here have sprited longer than you have, and so they know better AND they have better eyes
.
You can't just go around saying that others are wrong and you're right.
Like I said, the tree looks too solid, like a deformed bubble or something. You should make some more visible leafs(or leaves, whoever you say it).
Also, I'm not a big fan of the lightest shade of the green, it's almost too light.