Dear Jesse,
this looks like a very good work to me.
I became addict to charcoal, it is perfect to work in these long dark winter afternoons.
Normally I would use it to practice on edges, especially lost and found edges, which is a very good exercise for painting. I work very much smudging with fingers and try to keep the use of rubber to the minimum.
Here the photo is a bit blurry so i can't really see if you have exploited this media to its full potential. The drawing though seems very well structured and I cannot see any disproportion, well done!
If you have more time you might still push it forward a little, perhaps increase the tonal range and have the darks evenn darker. The line of the spine seems a little too defined, also I think it is always nice to find really straight lines around the body to give it strenght.
Here you can find some examples:
http://www.fineartcommissions.com/ex...drawing_05.cfm
Don't forget to post the final version!
Ilaria