Here with some comments for #FeedbackFrenzy. I have only limited experience in photomanipulation, and have definitely never put something together as well blended as this. I really like the effect you used to help the whole work come together. My biggest niggle is the model's hair. It loses pretty much all of its texture, which makes it stand out quite a bit from the still quite detailed bird. I think using a brush to give it back some texture and adding in a few low- and highlights will help it better match the texture that the bird has.
The tree she is standing near throws off the balance of the image a bit because it is so much darker/has more detail than the rest of the background. Perhaps adding another, similarly textured but smaller tree on the opposite side in the background might help bring a little more balance to the image. Or, you could darken up the tree already closest to the model in the background so that it does not fade quite so evenly with those behind it. I'm not sure what tools would do that though.
All that said, this is a well-composed manipulation and I like the flowy, dreamy feel you've created. It reminds me of one of the classic Disney princesses.