Some tips? Try drawing using smaller lineart, don't fade things so much, practice drawing without submitting (practice drawing anatomy, shading, expiramenting with different tools and such), and possibly spend more time on it. Good job for your first time though ^.^ Maybe try different applications next time like lascaux or Oekaki Shi-Painter to see which one you are most comfortable with using or gives you the best result.

Cool pic!!!!!