Ok, I think I'm finally done with the rigs. The robot rig is easier to control, while the boy's rig is separated into some pieces which I will have to move and key accordingly (like the old times).
While rigging, I took some notes of the process and the things that I learned from the whole thing:
Shape Rig notes(bind tool):
Symbols Rig notes:
And here is me having some fun while posing the characters:
Still work to be done on the character libraries. I think I managed to get the hardest bits out of the way by now.