There wasn't enough space to answer this below so...
A (most likely incomplete) list of visual artists who's work has made me smile, at some point or another - in no particular order...
Inka Essenhigh, Neo Rauch, John Currin, Banksy, Hans Bellmer,
Lisa Yuskavage, Gottfried Helnwein, Franz von Bayros,
Jenny Saville, Gustave Courbet, Twist, Alfonse Mucha, Mars-1, Oliver Vernon, Damon Soule, Tiffany Bozic, Francis Bacon, Tom Friedman, David Choong Lee, Bosch, Caravaggio, Sofonisba Anguissola, Pontormo, Lukas Cranach the Elder, Max Ernst, Dorothea Tanning, Remedios Varo, Jan van Eyck, Egon Schiele, Nikki de St. Phalle, Jeff Soto, Eric White, Jiri Kolar, Camille Rose Garcia, Mariko Mori, Wilfredo Lam, Josef Albers,Camille Claudelle, Gabriele Orozco,
To be continued...