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)
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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.