So it puts in towers and roofs and walls like a random image pipe/tube thingy? That might be the coolest thing ever and my idea of a holy grail. You could adapt the brush for ISO work as well. I like any of them but the trees look a lil off somehow in the first and oversimplified in the other two. I like the idea of the white circle thing around the cities in the first two but it does look better without as in number three cuz they're cutting through the buildings. Nice stuff, bro.