Thats awesome. I love the paint job to. How did you do the head?
Paint the head a dark blue, come back and drybrush in some shading with a medium blue, highlight with a very light blue, and then mix a medium blue wash and apply it selectively until the details appear to have blended together. It also takes alot of going back and correcting to get right. Patience is key.
Also, don't get in your head that once you've started painting you must finish it - if you don't like the way it is going, strip it with simple green (my favorite paint remover).