I know this one is pretty old by now, but were deciding on putting both Shred and his cousin in a kind of battle against each other, sort -of-drawing? Also, is that his real name, or have you not given him a name yet, or if you will at all?
Awesome! The eyes look good and his hair style, the bang looks cool! Also like his ears and the protruding lower canine! I think his chin is perfect for a bad character. I do however feel that as a canid he would look better with a longer muzle especially as a wolf. He does look more like a felid than a canid in my opinion.
Hmmm... the only problem I can tell you about the head is that the chin is a jutted out a bit too far forward for my likes... a bit too comical. I'd like to see a whole body sketch with a size reference before I can truly give my full opinion on him. Otherwise, great job.