Here's where I ended up after about 6 hours of painting and modelling. Lord Putro, fat and sassy. Not the best pictures but you get the idea. I just picked two of my favorite colors and attempted to make them work. So far I'm a happy man.
The white globules on the base are still untouched, they will match the drip coming from his intestines after the next sit down with him.
Working with the colors of rot is very comfortable. Pretty much anything goes and I like it that way :)