Being able to see more of the birds would have made this even more effective, I think, though I understand the difficulty in doing that. I like the green tree in the lower left, for some reason. Adds stability to the shot, I thinkl
Not a lot of interesting things to look at here. Needs a stand out feature e.g. No green tree in the B/G More interesting sky, better angle on the tree. I guess what I am saying is... It just looks like a snap shot to me, I could go out side and do the same thing in 30 Seconds. A good pictures needs somthing special.