Holy crap I thought this thread died. Thanks guys!
I agree with the composition. Its very boring. I haven't figured out how to make a background yet in ZBrush. (I'm determined to make it all in ZBrush and not use any Maya or Photoshop in order to improve my ZBrush skills).
I'll keep adding to it as I learn more about ZBrush and hopefully I'll have a nice background with some nice lighting to add to it soon.