Wild west cowgirl =D

I'm about to start coloring this piece, but I want to add more detail and "stuff". The thing is, I can't quiet think of what else to do. So I figured I would chuck it up and see if anyone can notice any horrible gaffs or has any suggestions on what to add before I color it.

It was actually a real challenge doing this piece because it was the first picture I've drawn and inked completely with my Wacom tablet! Hurah! I saved a tree!