Silicone

Here's my progress on the silicone so far and I way underestimated how much I would need. You can see where it's still very thin (almost everywhere) and there's still a lot of grey showing through. I've started building up the mold walls and I'll start adding keys soon.

I'll probably build up keys on the front and back as well to secure into the plaster shell. I won't have enough silicone to get it as thick as I'd like so I'll be relying on the shell for added support.