Larwick, your problem at this stage is not where you're focusing. Your poses are stiff and while the lengths of arms and legs whatever is okay, there is a lacking of actual anatomical knowledge in how a body operates, in what kind of positions it would be comfortable in, how weight affects muscle and balance. Right now you have a 'flyswatted strawman', there is no flow and no coherent structure. The arms are sticks, the back a straight line, the actual hands holding stuff are just stiff and expressionless. You're focusing on rendering the face while you should be doing ground-up studies on the whole human figure. I guarantee you that 10 hours of life studies, focused, will make you level up twice. Gosh, I read this and it sounds harsh, but I wish someone had told me the same 2 years ago when I was rendering whisps of hair and eyelashes and lips meticulously on lifeless wooden poses. Still struggling with it, and I am trying to give you a better focus.
If you need an edit I can do it, Adarias' is really good, but not extreme enough. The pose just doesn't work.