I know the tribes are still being fleshed out (ha) but wanted to suggest that it would be great to see some [preliminary] style guides for the tribes, if such a thing was possible. I'm sure it's planned, and I'm sure you have some of it internally already, so it would be good to see something - perhaps for one tribe at a time - going hand in hand with any models as they are prototyped and shown.
This would be amazingly useful for folks to start creating designs and works of art, buildings and other cultural imagery for the tribes, with a coherent look and feel.
This is the sort of thing I was thinking of:
EQN:Landmark Kerran Style Guide
But we wouldn't need/expect it so in depth at this early stage. I was thinking for Kypiq for example, "Treehouses" is pretty broad - and I have been only able to find a few other references so far like "tree cities fascinating on account of their unusual and occasionally perplexing design" and "propensity for interesting and complex technology, as well as shiny objects". That leaves a lot of possibilities.
Looking at the Kerran style guide link above from EQN:Landmark - something like pages 2 (shapes), 3 (silhouettes/materials) and 8 palettes would be a great to add to what has already been revealed about the tribe in question.