Weh.

[SuperWarioWorld]

I don't want to move on because I actually enjoy spriting/drawing muscles. It makes me think more than I usually would. Can you provide any specific examples of how the muscles are off? I'm pretty sure that I'd just need to redraw the whole arm because the shape doesn't lend itself well to trying to use a reference or something similar.
I want to try this:

Here's a rough arm sketch. Just to correct my understanding of the human arm, is there anything anatomically wrong with this rough sketch? I mean... other than how stubby the arm is. (I know the muscles aren't shaped perfectly.)