Thijs, I like these type of images - super pose in the open, and perched on foliage. Light and exposure look good, as does the BG, and of course his catch a bonus. I would maybe crop up from the bottom a bit, to try and rid some of the OOF FG, and maybe a touch off the top too.
Like the composition, with the leading line of the vegetation from the left.
Really like the little flip of vegetation behind the tail.
Prey item, catchlight, BG, all good.
I could see a sliver off the bottom. I am usually pretty sensitive to OOF foreground stuff, but this one doesn't bother me much.
If you wanted the bird to display larger, a bit of a crop from the left could work as well.