Modelling flesh is a hard challenge. This is not my first try, but the previous ones were awful. First I tried to mix a fleshlike color from fimo, but it's impossible. The flesh is different everywhere! So I gave up the mixing, builded up the shape only from white, and added all the colors after shaping.
Now it's on my Etsy shop, but telling the truth I don't know who needs a halved pig. Perhaps it's good for a miniature butcher's or a historical scene. At the worst it would be a perfect Christmas gift for a butcher as a cellphone charm!