Updates:
I have almost finished the second pass on the Southern coast. The rivers now have names (simple ones - there is the South Branch, and the East Branch), and I've started working on the shape of the South branch. It now has a flattened, pebbly delta on one side of the mouth, and a sharp cliff on the other. I still need to add statics, and get the vertex shading perfected, but it is looking a lot better, and better integrated into the Leeward Forest.
Which is the next thing I need to work on. Right now, the forest has no trees!
Also, I finally got MGE working with distant land. Unfortunately, it makes my landscape work look like warm, stinky behind. I'm going to need to do a lot of work to make some of the coastal areas look better with MGE turned on. I was a bit shocked, and appalled, the first time I walked to the lodge with MGE active. The water looks incredible, though - so that's something. (The Blackwood river is properly vertex shaded)
Hopefully screenshots soon - when they don't look so awful. I did turn the distant blur up a bit, and that helps...