Hi Paolo, nice moment to catch with the fish. I think it would ncie to have some more space at the bottom, and there are also some (healing tool?) marks in the background that are a bit distracting.
Good capture with the fish. A lower angle might have been better, but not always possible; and I wonder if a bit more contrast might help it pop. I can also see the processing spots in the bg, easily fixed.
I agree with the others on a lower angle and more space on the bottom. Try using the patch tool to take out those white spots. Good job on the exposure, and the prey item is an added bonus!