I have been using the population spawner to good effect. This was tough to get at the right angle to look like the sketch I had in mind. But I did learn a considerable amount about connecting two terrain layers together by working on this.
[attach=1]
Blood Cult Towers
It is interesting that someone else was trying to get a similar dry look lately and we came up with very different techniques.
This is another one I did recently in a different vein. Using walker tanks instead of trees, and set the random angle to about 15 degrees for this look. Fortunately they ended up facing the right direction and I did not have to do multiple renders. Just multiple passes in photoshop cc to get the icy effect in.
[attach=2]
The Tide Of War
I like image 2. The color in particular.