Terror Bird of Paradise (Dropped)

This thing has been hanging around for the better part of a month now and I frankly just want it over and done with. I spent far too long on the research, that was the problem. So when I made the mistake of putting a pencil sketch directly onto a texture I didn't have the heart to do another again. Problem was the sketch wasn't dark enough on the scan. I fiddled around and the only thing I could think of was to you "Colour Dodge" filter to bring out the dark lines; then flatten and then do a "Colour" layer above that. Didn't work. So, I'm dropping it.
Maybe one day I'll come back to it...who knows.