This has already greatly improved, I like it even more now
The grasses really benefit from the higher render settings and so do the trees.
What's the quality setting of the tree-populations? The left tree seems a bit un-detailed for a render with AA @ 10 and detail @ 1.0.
The water has improved indeed, but I would make the scales even smaller. Maybe so small that it is just not a flat lake. You have to imagine how big these waves look when you're standing next to a tree down at the shore.
If you still have the time and energy
you could also try to add some color-variation to the soil.
How did you make the pile of stones? It looks really interesting!
Martin
hope you don't mind a posted the same comment here