Its three images, two with ink and paint shaders and one with a glossy material. Then I layered them in Photoshop and deleted everything in one of the ink and paint layers but the black outlines. The other ink and paint layer I turned up the opacity so you can still see the glossy layer. Thank you.
Wow. Impressive process. I'm not that great in photoshop, so my post processing of anything beyond simple color adjustments is very limited, which is why I need to do the majority of detailing on the initial render. I wouldn't have a clue how to do what you just described.