Right. They didn't show the witch in the second film. Todd McFarlane's figure (which I own and love, though it's not one of my *favorites*) is an "artist's conception" of the Witch.
But as we all know, what our imagination conjures up is most often scarier than anything a filmmaker can show us. :)
James
http://members.tripod.com/~NEWMANATOR/index.html