I like this last update a lot. The lighting looks very natural, the models look good and are not overpopulated.
There are just 2 minor crits I have. First I think the shadows are a bit to sharp and too dark. I'd suggest to increase soft shadow diameter a bit and also to add an extra sun opposite to the main sun and at the same angle. Disable all shadows and highlights, just plain light. Set strength to about 0.2-0.4. This fills the shadows a bit. It adds a tiny bit of rendertime, but this always works fine for me. Increasing GI strength on surfaces to 1.5 or 2 might also help in certain situations.
Secondly, and the easiest but most time consuming, is that I'd like to see it somewhat bigger and at higher detail settings. But that's just a wish :p
Nice work!
Martin