Something like this affects you and becomes a part of your life because, if for nothing else, you realize there's a lot more going on, that it's a bigger world, bigger universe. It changes you no less than standing there sketching the birth of your child. You may not be aware of changes occurring, but they do occur. I guess an artist would do the same things up in the craft that they would normally do at the space center, like sketching. But just like all the astronauts you'd need a rather unique person to fill that bill.
Astronauts do what they do because they're trained to go up there and do it.
An artist would have to be trained, too. I can see how incredible that would be to have someone doing what we do here on earth, up there. That would be quite exciting. I wouldn't want to be that person. Personally, I wouldn't want to have to deal with the celebrity label you'd have to carry around in the art world for having been the first or the only artist to actually do art in space.