Like what you did with the chimneys. Not thought of using fence for the top part. See it as a nice touch.
I like how you've built around the terrain rather than just flattening it and the chimney idea is neat, i'm going to use that somewhere for sure.
Let's make this a thread, show us your first colony people. Here's mine, I named it "Asimov's Reach" It started out as the Brick house in the center and the Floran style treehouse that i built, but I've added some tenants a farm and an eccentric scientist that lives on the edge of the colony since then.
My first colony was in a abandoned minikong research lab. Unfortunately I do not have that character anymore so I can't show case it.