Pretty good
Sorry, but I'm gonna have to join the ranks of the 8's on this one.
Its very impressive, yes... but the wings on this one have... a slight lack of contrast that makes it a little difficult to see where one wing ends and the other begins.
This has the effect of making the wing-arm appear to be an obstruction that merely blocks the viewers... er, view, of the wing, even though its not.
Still pretty cool though. A little tweaking and this would definitely rank up there with your other pieces!