Looks like very professional concept art, like the ones you see on whiteboards at game developers.

Maybe Colonius is a bit too industrial/modern age with those brickstones? It reminds me of Industrius from JJ1. Fanolint looks like it's built from actual greenhouse equipment, unlike the orinal set which is made from orange blocks somehow.

Turning these into sets would be a ton of work though, but I like these artsies, hehe.