Thanks guys! The base and blood is just oodles of the Blood for the Blood God technical paint. I used to mix my own, but because my ENTIRE army uses so much of it, it was very difficult to keep a consistent recipe (and also just a pain).
For the basing I used Liquitex "Natural Sand" effects gel (most art stores carry something like it), which was nice and goopy, but with some grit. I used to use Pumice gel, but it was too porrus and sucked up a lot of the blood paint (example:
http://mcgibs.com/wp-content/gallery/miniatures/chaos-cyclops03.jpg). This new stuff gives it some nice places to pool and smooth out.