Wow, fantastic!
Some things to improve (in my humble opinion):
You could add some wetness to the rocks up to a certain height.
As far as I can see you already added some localised clouds to simulate spray. More, more more! And a bit denser. The good thing is, for stills you can use a low quality for the clouds to make it look like a lot of droplets.
And yes, some mossy patches at the lower parts of the rock would look great!
Something else: is the foam pattern procedural? If so, would you share it?