I managed to finish the face rig and it looks pretty cool, but now that I fully understand the process I’ll go back to polish the model and add a few things to it. I’ll turn him into a mexican Luchador, so there’s still many things to do. Once he’s finished and fully textured, I’ll create the rig again from scratch, to study it more and hopefully make it better. Finally, once all that is done I’ll make a little animation to test it.
Here’s the ref sheet for the mask and the overall look of the character, and a few more render tests: