Nice work, but the water in the horisont has the same luminance as the sky,
and should probably be darker in my opinion. Except if you want the water to
fade with the horisont, because of fog, but it doesn't look like you have
fog.

The ripples are too uniform. You could add some variation by introduce some
wind, to vary the strength of the ripples.. Also, the scale of the ripples
suggest the rocks are too small, in my opinion.. Not that you need to limit
the size of the ripples, but perhaps add some smaller waves.. Sub waves..
Have you tried Christoph Hormann's implementation of realistic "sine-water"
?  It animates well too. He read an article on the net, and made a macro in
POV that contain some of those formulas. (search the newsgroups for "sine
water")

Maybe the water is a bit too reflective.. Or.. Maybe it's realistic enough,
but you need more skylight. The water is completely black where the rocks
are in shadow. Radiosity from the blue sky would solve that.

Lastly, you could add some interaction with the rocks, where the water
'hits' the rocks there should be some small ripples bouncing back.. To
simulate that, you could put an orthographic camera on top of it all, to
sample the rocks from above, and with a paintprogram make those bouncing
ripples (any way you can).. The result then has to be added with the ripples
you already have.

Maybe this sounds too time-consuming but it was my ideas about the water.
:o)

Regards,
Hugo

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