Good composition and nice work on the water, The figures look well painted as well.
Couple thoughts.
You have some silvering on the decals., Try glosscoating before you apply them to get a smoother surface for them.
The guy in the raft looks too relaxed considering his buddy is still in the water. The natural reaction would be to reach out to him to help him in, especially where the guy in the water is reaching for the raft.
I'd add some gloss over the model to represents it being wet. It just hit the water at a speed of at least 80 miles an hour and should have had a massive amount of backspray and should be wet.