Humor that is as dry as the champagne abounds in the wry glances of the waiters and chefs in Guy Buffet’s “Restaurant des Capucines.” Selling his first watercolor at age 13 to an American tourist visiting his family’s restaurant in Paris, Buffet now claims an impressive body of work including whimsical parodies of quirky characters with marvelously expressive faces. Rather than conveying a message, Buffet’s artwork is an invitation into his world of dreams and fantasies and can be seen in museums, ads and collections.