I am working on it with the lowest subdivision, i just raise it for the screenies so it doesn't look so edgy. Hmm, i don't really think that anatomy is that important when doing a cartoon character. I mostly goes after the anatomy that the concept uses. Could you please specify a bit more what is wrong with the anatomy…
Original sculpt reminds me of Arthas... You can always switch subject andmake new thread :) Jokes aside, I always found cartoon characters concepts harder to work with. They lack lighting definition whick makes 3d forms ahrder to understand. For start stick with realistic reference, at least that's what I did. Good luck…
You say that you have alot of detail to go, but I think you need to step back and hammer out the basics of your mesh first. I realize it's more of a cartoon look for the basis but you're not matching the concept. The neck is really thick in comparison and the chin is pretty wide as well. You seem to be stuck right now…