Shredder's been stalled by the helmet concerns -- it's way too bloody big, as seen below:
Buuuuut I've done some work on my Foot ninja custom in the interim!
I'm going for an "animated" take on the design seen in Manhattan Missions, so I've sculpted oversized glove cuffs and poofy pantsleg bunches, a collar thingy for his vest, and a belt (mainly just to try my hand at sculpting). I've also added swivels to the glove and boot tops, since the Spectacular Spidey base figure lacked those.
Fun times!