I must do some nitpicking, Martin. Everybody is very enthusiastic about the rocks, but, to be honest, I find them a bit dull. Especially with this lighting the shore on the left is one mass without much distinction. It might be so in the Sierra's, and in that case I would find a POV or lighting where the rocks are not such a big part of the render. Unles you will break it all up with grasses and stuff, perhaps.
I do like the algue on the rocks where they are wet.