I recently discovered a breed of prehistoric pig-wolves called entelodonts. Well, I didn't discover them, I learned about their existence. Below is the aptly named Daeodon, or "terrible hog". Why they chose to use a frightened bikini girl for size reference, I have no idea. Maybe daeodons were also chauvinist pigs.
Below is Andrewsarchus, my new favorite non-dinosaur animal.
These guys reminded me of the wargs from Lord of the Rings, so I thought it'd be fun to sketch my version of a warg-rider. He had to be someone real nasty who looked like he'd be right at home riding a Daeodon into battle or wrestling an Andrewsarchus into submission. Here's what I came up with.
If this guy existed during primeval times, he'd certainly give cro-magnon man a run for his money. For the colors, I googled "mottled" and found this cool texture. It has all the earthy greens and browns you'd associate with an orc. Thanks to Photoshop's eyedropping color-sampler, I was able to use this as a direct palette, and it worked pretty well!