After finishing the rough sketch yesterday, I proceeded to clean it up by using a pen tool in Artrage, to create an inked drawing look. I haven't really done much inked drawings before, so I take this as a good small step. I know it's not the same as using real pen and ink on real paper, but using a digital medium frees me from worrying about wasting art materials as I learn and inevitably will make mistakes. I'm happy with what I've done.
I could have just left it at that, but I decided to add color to see how it would look. So with the inked drawings on the top layer, I added the whites underneath, and then glazed in some color in blend mode for the tongue, inner ear skin, and eyes.
Then for the background, I added some gradient color for the final version.