Thank you all for feedback. I am happy you like it. I guess yes i will let it empty of any "civilized" placeables other than some ruins and that bridge.
@Windemere: I was mapping with NWN2, though 10 years ago. With DOS1 i was also figuring out the potential in comparison to NWN2. (Beside other things and difference in release date, AI Grid rendering / baking is so much superior in DOS engine). Terrain painting really is nice with DOS, though i am lacking sometimes to punch to really finish this amount of detail work. If you like it though i will upload it as GM addon.