Make the eye a single red evil pixel surrounded by darkness. It will make it evil.

Real quick edit focusing just on the fur part (not pretty but it will do for what I'm trying to explain). For representing fur, usually drawing the "lines" is not the best way to go, focus more on how light casts shadows on your fur texture. I suggest you read this featured topic that will explain this better than I can.

Also, if I were you I'd avoid working on a perfectly symmetrical object, perfect symmetry looks unnatural and doesn't fit to live creatures, makes them look like dolls.

Edit: hadn't seen yaomon's edit, which is far better than mine ; I hope my small contribution can still be a bit useful 

I wouldn't say my edit is better. Your approach of big tuffs and clusters is probably far more practical and easier to achieve better looking fur. My edit does add a lot of noise and extraneous work since I was thinking in the vein of how to depict shorter fur :\

Good insights all around.

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