When drawing is fun...

This isn't my original piece. I drew it, but I was basically just copying Micheal Turner's Supergirl. But it made me know how it feels to draw something really cool. My objective is to continue to draw until I can create things such as this out of my imagination. I'm not sure what I'm not getting that doesn't allow me to make this quality of work on my own, but I intend to find out.