For one moment, I’m going to be that guy who insists on taking a metaphor literally. Artists are not defined by their methods, nor by their ability to make pretty things.
The job of artists is to touch draw us out through sensory experiences in ways that convey understanding, challenge preconceptions, and move us in new, unique, and effective ways. Beauty is but one tool that can serve the artistic purpose.
I cannot define art coherently. I simply know that we need both robotic space probes taking pictures of other planets and creative human beings here on Earth devoted to artistic exploration – and that we conflate the two at our own peril.