From Wikipedia entry:
Giuseppe Arcimboldo (also spelled Arcimboldi) (1527 – July 11, 1593) was an Italian painter best known for creating imaginative portrait heads made entirely of such objects as fruits, vegetables, flowers, fish, and books — that is, he painted representations of these objects on the canvas arranged in such a way that the whole collection of objects formed a recognizable likeness of the portrait subject.
This artist is one of the Famous (non-game) Artists on the Geek.