This works. I like the shot - that bird (could it be a vulture?) silhouetted against a terrific build-up of cumulus clouds. The balance and compostion seem good. Have you considered putting any kind of thin border around it? Maybe something to bring out the darker blue clouds? or another color of your choice? or no border? At any rate, it's a
You're welcome. What kind of bird it is depends on its size and how the tail feathers look in flight. Books and images show it's more likely to be a black vulture, though it also depends on where you were. And how close you were (or your lens was) to the bird.
About borders, *faeriecrone and I chat about borders from time to time for her digital-art-manip mandalas. The first here [link] had no border at first, and we agreed looks better with one. The second [link] still has no border, though we discuss that as well. Is that the kind of example you wanted? (I'll just hope those links are correct. ^^)