I agree with Axel about the bird's relative angle, and there are some distracting elements in the top part of the BG that could be eliminated. Excellent exposure and colours, and the worm is anice bonus. Too bad you didn't have time to go lower, but still OK of an angle as is.
Yes, in a perfect world, a lower angle may have improved this image. However, there are many reasons this picture works. The exposure, light, colors and details are amazing. The head angle doesn't bother me b/c it clearly shows the bird's dinner. I also like the habitat which has been included. I do think the dark part of the leaf in the top left is distracting and needs to be removed.