Paul Klee, "Glance Out of the Red"

Paul Klee, Glance Out of the Red, 1937; Zentrum Paul Klee, Bern.

Although the reproduction below has copied the shapes and figures in the Klee pastel shown above, the colors don't match the original. In fact, the new coloration seems almost entirely reimagined. A modern interpretation — no matter how farfetched — is perfectly acceptable, but to avoid misleading viewers, such a piece should include a label announcing that it's a new work "after" the original artist. The photo above comes from a 2009 exhibition called Paul Klee, Carpet of Memory, at the Zentrum Paul Klee, Bern.

Altered version of a pastel by Paul Klee.