This will just be like a preview I guess. I initially thought they were supposed to be separate but fortunately I was corrected.
Kualus:
I figured that since he was slightly odd compared to the others, since he basically taught Nuju to talk to birds (if I remember correctly) so I decided to be a little more unique with his design. Besides the obvious I thought the spikes on his ankles might help in ice climates and maybe his arms were fully mechanical or armored differently.