I started painting this in Photoshop CS5 a couple of years back and just didn't have the motivation to finish the background as it's a pain in the ass using a laptop mouse. I wanted to get a tablet for it before I finished it, and I just acquired one
So here it is. I didn't go over all of it again using the tablet, the dragon's coloring is still on the rough side but I'll update the file when I do.
EDIT: I updated the file.