That's pretty neat. ^_^ - - Auto Merge - - also, since the other person gave you some notes, and since I'm trying to learn how to use the pen tool in photoshop I thought I'd try the same. I know it's not perfect, and I can point out mistakes in my own thing, but I think it fixes a few of the things I mentioned and a few things I noticed. Anyway I have a version on it's own and over the original. If I could figure out how to easily change just one thing in the line art I did I would make the muzzle less long. If you actually like them go ahead and do whatever you would like with it.
Remember, it's less about the specifics on each image and more about the image as a whole. As long as you're shooting for better each time, eventually you'll get there!