I hope Michael doesn't mind me lifting a few images from his blog to peak your interest here. Click on the link to Michael's Blog to read more about it.
(click images to view them larger)
This shows Tissa's rough and the final drawing as it was hand-colored and mounted on a cel.
Stephan MacQuignon colored the drawing and Robert Marianetti added shading. Christine O’Neill did the cut and paste on the drawing to cel operation.