Monkey's can are doing art so why shouldn't they be able to do it. A monkey/ape in the viennese Zoo used to paint until a few years ago. She still recognizes her work from 10 and 20 years ago, and if you turn the painting upside down or any other direction then they way she originaly painted it she will correct your mistake.

Also they can already us a camera intelligently, I agree film loading might pose a problem though.