Mouse WIP

I've been going crazy trying to fix this with a wireless laser mouse. I took a picture of myself for a reference for the head/neck/arm area, in a futile attempt to make this look more dramatic and accurate.
This is so difficult to do without my tablet x_x

It still looks incredibly off, but I'm trying to focus on the top half for now. If I try to redo it all at the same time, I will implode.