First benchmark rendering. The main challenge in this scene was the multiple water levels, four altogether, three of which are connected by locks and flumes. Rock wall was made with ZBrush. Full moon and sun positions are calculated for sunrise, September 8, 1824. View faces due west.
More to be done here, including details like the water edge, but also a few more structures, boats, and people. A few more weeks' work.
Edit: Should mention that the grass models are by Dune (thanks for that share); all other models are original.