Today on Ebay, there's a background painting for the 1983 Bakshi/Frazetta animated film Fire and Ice. The original painting is rendered with brush and airbrush in cel vinyl paint on board, 12.5" x 16"  by James Gurney. $2995.00

In the film, an animated layer of bright red lava spews out from the volcano gargoyle.
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Ebay link Fire and Ice background painting by James Gurney
Fire and Ice (Two-Disc Limited Edition)