Here is the underpainting done with watercolor on the plaster heart.
Used Potter's plaster #1. Took detail from the mold very well. Sculptamold was horrible. Plaster is still curing. Really hope I got the ratio correct. First time using Potter's Plaster. Wonder if I need to find bone hardener for the plaster. Really shouldn't have gotten rid of all my supplies years ago.
So, now I think let this settle then paint in oils. After that, throw on some latex for texture.