I like the silhouette idea and dark-blue sky. I might darken the legs of the bird and the piece of green in the lower left. There are some artifacts in the BG, maybe from resaving?
Axel, I see what you are saying. I will revisit the raw file and start over again. I had just started bird photography when I made this. One year from that point, I should definitely be able to do more justice to the raw file. Thx for the advice.