I was thinking of my friend Rubix when this came to mind.
Completely overworked it. I'm going to have to sit down and figure out some style and technique to keep me from overworking things.
I really think I diverged a little much from the simplicity of the original sketch: http://www.furaffinity.net/view/15858350/
Link
Buck
I love your fur work :D
my critique about borders/outlines stands. for instance, part of the right eye gets lost in the fur around it because the two colors are similar in brightness. outlines could potentially fix that problem.
I get the feeling you're going for a style without outlines, but if you do, in my uneducated opinion, your shapes need to be smooth, bold, and purposeful. Right now, everything is kind of fuzzy.
Not just because the fox is a fuzzy critter.