ok, here are a few documents that shows what we were planning while working on our Bionicle Legacy.
Axato's mask consepts:
(please note that the cape image was not made by us, it was something that i found on Google which ended up being saved together with the other Axato consepts).
the generals consepts:
the monster consepts:
story consept for the skull raiders:
story consept for the "Children of Makuta":
consept for how elemental powers works in Bionicle Legacy's G2: