Are these inks or just pencils? They look a lot like pencils to me, so I suggest that you either look into inking (if you aren't) or maybe use another type of pen (if you are) since the penciled look you have here isn't really working for me.
Also, you really need to beef up on your knowledge of basic anatomy and proportion. Don't be afraid to use reference photos, and try to start sketching from life so you have a better feel for the human body. I realize you're going for a fairly stylized look here, but you have to learn the rules before you can break them.