It's honestly not that bad, you seem to have a decent idea of proportions. I would highly recommend for you to check out some of Loomis's books or other similar anatomy books. I originally started off doing sketches similar to yours but I can assure you that the time spent on studies and learning from books is well worth it.
Send a pm over to CH if you are interested in the books
http://forums.d2jsp.org/user.php?i=215222 , or you can easily find some online.
Hopefully your jimmies are no longer rustled

Thanks a ton, I never knew how much went into sketching/drawing or art in general.