I LOVE it. Make everything out of glass, including the floors. Clear out all the visible ground so that all anyone can see is void. Set it to always night, and place glowstones at random points outside the glass as stars.
Surrounded by a huge steel fence. A large clearing in the center with the mine. Tiny log cabins randomly placed throughout as cells. A larger cabin for the shops and whatever kind of workshop this rank needs. Instead of an animal farm, free-wandering animals in the woods.