As well as this, these models are based on the no man’s sky corridor modules, and I’m wondering if you developers have any ideas what modules a space colony should have such as command posts, barracks, etc.
EDIT: The blue parts on top are supposed to be solar panels but they are currently untextured
I’d recommend different sorts of control and storage rooms. If it’s a ship or a base, a cafeteria and sleeping quarters may work as well. Other things like reactor rooms would depend on whether or not you plan to have those.