Thanks y'all. ^_^
I'm also intrigued that it looks from the photo as if the mould is only two pieces. There is so much detail on the head I am amazed you could manage with only a two-part mould.
I tried to minimize undercuts when I did the initial sculpt, but there are a few. The foam-filled latex is soft enough though, and the undercuts are mostly pretty shallow, that it's not a problem only having a two-part mold.