Unfortunately twitch muted the stream due to some of the music.
Watched a bit of it. You're pretty fast at the buildings and props, I hate doing that :P
One tip I might add is to add some extra terrain with the resize tool. That way you never stare off into space. Of course this means you need to add some impassable areas with props and such but it looks a lot better that way.
Also you might play around with the clamp setting for terrain painting. I find a lot of terrain looks better at the .7 or .8 on clamp.