Fox fur practice

Reference photo: www.alaska-in-pictures.com/dat…

Basically just trying to practice fur, learn directional flow, get a feel for values and stuff.  Hoping to improve, so if you have any suggestions for improvement, I'm all ears! (and so is the fox!)

I'm disappointed I can't get a decent photo or scan of the picture.  A lot of the intermediate tones and highlights in the original just don't seem to translate to digital format.  :/

4B pencil, kneaded eraser and tortillion 
A few hours
Wow time flew while I did this