Ring Habitat
This was done pretty quickly for the Blender Artists forums weekend challenge, https://blenderartists.org/t/challenge-1092-ring-voting-closed/1531876
The theme was ring. I'll probably revisit and explore this idea some time in the future. This image is somewhat rushed, I didn't do much with the foreground, so a future version might have something more interesting, like a little cafe with some people, or something.