Throw Art Critique at Me.

Image not the focus, check the links below. Basically, I'm at this point now where I feel like I'm not improving much at all, if at all. I'd like some recommendations on what I need to work on, where and how to improve, whether it's to do with my skills or even if you just don't like a certain bit about a design, I'd love to hear any feedback. You can find my work below: [url=http://plainben.tumblr.com/][b]PlainBen.Tumblr.com[/b][/url] [[url=http://31.media.tumblr.com/d3cb03dce63150dc1a2867c216d281ed/tumblr_n1ddy2zyA41ttdtqgo1_1280.jpg]Overall Art Progress[/url]] *Sneaky update of OP Image*