Slash & Charmander

[StarSock64]

It's pretty clear you don't know anything about the human body at all

you should go learn about that first. Like seriously read not just...look up a few references and try to adjust. Read.

both sets of limbs and the feet, gah. It's pretty clear that you're guessing on the folds, too, and I'm pretty sure such tight sleeves wouldn't cast such a dramatic shadow and you don't have nearly enough contrast. The super light shade of gray on the skull is completely unnecessary. And the face is incredibly hard to read