@drgnclw well, I could try 😀
The first thing that I noticed is neck

It looks like sternocleidomastoid is going right up to the jaw, when it should go somewhere behind the ear. And it starts from clavicle on your sculpt, bit this visible part is a sternal head of SCM, and should be connected to the sternum.
It will be cool, to see this sculpt from the side view, maybe with part of the hand hidden to look at latissimus dorsi and serratus anterior and from the top to take a better look at deltoid.
I had no time for latest few days, I will give more attention next days.