With that line of thinking, neither can humans. no matter how original a piece of art is, it is just cobbled together from that individuals impressions.
Actually it can, if you consider human art to have divine qualities like the ancient greeks did with muses.
Yes but luckily we live in a scientific society so you probably wouldn't consider that. But even if you did, you have to consider the fact that anything you call divine is in itself something that is made up of someones imagination, an imagination that has been inspired by the events and experiences of that person/group of people.