Great render, especially the background terrain. The foreground is a bit jaggy but it's really nice.
I can only see the lines on the water at the left hand side.
I get this very often aswell, and microvertex jittering doesn't seem to help me.
Is it to do with repeating fractal patterns? I tend to use small scaled water shaders, do you do the same, Franck?
I can't get rid of it either.