Looking pretty neat^^
However, on the first pic you should decrease Z start, and increase Z end on the fog. And on the second pic the watefall looks like it comes from out of nowhere; I think it would look better if you place some mountains behind it.
Z-start is allready 0. I have difficulties making a proper night lighting. That's why I set the fog Z-end so short; to create a nighty feel.
I really wish I knew how to make it all a lot darker, and barely visible. Then I could increase the Z-end, making a poorly illuminated horizon, yet one where you could make out the main objects. A bit like in Megafyr's cool, ruined prison.
Maybe I should also place some small lights on the towers; to resemble windows with candles and lamps. Yes there are two towers in the first screenshot, but the second has disappeared completely in the fog. If the lighting were proper, you could barely make out that tower too.
I gotta redo it if the waterfall shouldn't come outta nowhere. I guess I didn't plan on this view when making it, and forgot about the waterfall problem when choosing the view. The map ends behind that "rock wall", you see
I have a tendency, or a desire, to stretch my terrain creativity to the borders of the map. I think the borders are important (if you were for example to make a 1st or 3rd person map). Only problem here is the border isn't properly concealed. Gotta work alot on that in the future.