Finally, a variation. Here are the changes I made: I turned off the water shadow - underwater is now lighter. I set the Refract softness to 0 - crystal clear water. I set the math function value in front of the fBM to 0 - so this turns off the foamy clouds. I changed the blender colors to a darker gray and I shifted the aqua to have more green in it.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)