WIP - Anatomy Sculpting

Norron

Hello people, I'm working on a character sculpt for a school assignment and need some crits on my anatomy so far. The feet are basically untouched and the hands and feet will be covered or missing from the final so they're being left mostly alone.

I'd appreciate any help, because I don't really understand how a lot of the muscles really run. The chest area in particular feels very wrong to me still.