Part 03:
Change the elevation sun light to approx. from 30 to 77. to avoid sunshine in the waterfall...
-Add a Power fractal shader in the node network area, and plug it to "heightfield generate 01" shader (top right) with these PS setting:
noise stretchXYZ 1-10-1 in the tweak noise tab .
-Add a "Twist and shear shader and plug it between "heightfield shader" and the "Compute Water" "Lean factor": 1 ,"Lean direction": 0-1-0
...to be continued...