Yeah...you're probably gonna have to add your own outlines for some parts, like I did for Muk. I did lining with the main outline color underneath each of the dark sludge-wave parts, if that makes sense. Copy my Muk into Paint for reference.
Also, I finished Drapion a long time ago but apparently I forgot to post it, and now it's gone. It took a few days to do, too. D: