Seed has released a number of new pieces of concept art and design. Here's what the developers had to say about them:

"Amongst the pieces is concept art of the colony tower core as well as the cluster canyon. The tower core is a large vertical open space where Tubelifts transport colonists and goods from one cluster to another. The cluster canyon stretches from the core of the tower and right through to the shell - or outer side. Areas such as Lab Space and Rec Space are connected to the canyon by Rad Locks."