The thing that really bother me, maybe I'm the only one...but the value of your left tree looks to be a bit too strong...just fade it with some nice green (kinda like you did on the bottom tree) or something like that
And I'm not sure about the bird...each time I try to look at Nashtar, my eyes always are distracted by him/her !
But hey, just some little suggestions here, do what you want with it man
I know feedbacks are cool but when there is too much....not easy ^^'
Good luck !