After the background was created I drew the animals in with red pen then blotched in a bunch of colors. It was pretty rough but that's how I start.
Then I started picking out features with more pen and enhancing the colors more. I also added red and splattered it on.
Finally I took out the black pen and some other colors to pick out the other high lights and important bits. Also the white outline is given. I might still tweak the blood on the floor ... I'm sleeping on that one for a bit ...plus it has to dry.