At this point I was considering a demonic, pointing chin based on
exaggerating a cleft in the vampire bats actual lower lip anatomy
as for the central microphone, I eventually made it bubble out to have more depth. I also gave his eye tech, which was a pressed in hole, a more outward 'lens' by rolling up a little clay, pressing it on and fine tuning it. Makes for a much better effect catching light and can be an easily painted part. He still has the Darkness from 'Legend' chin, which Marty I think rightly steered me away from.
The bottom two pics are the final sculpt before molding. The eye lens should look great in clear plastic.