Also John Tenniel, and Gustave Doré. I know there is a bible tarot based on his drawings, but it would have been cool had he made an original one. And Mark Chagall. There is a deck based on his work as well, but I don't think that he painted it either.
Damn, there are just so many. Kadishman could have an interesting take on Tarot as well. And a John Howe Lord of the Rings deck.