This may or may not be by Richard Williams. In the late 80s Disney and Fanta hired the Richard Williams Animation Studio, London, to do a series of animated advertisements. This is part of that same campaign, but may or may not be by Williams.
With Mickey Mouse, Donald Duck, Goofy and Thumper.
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Fanta is a global brand of fruit-flavored carbonated soft drinks, created by The Coca-Cola...