I'm not a huge art fan. We have lots of stuff on the walls of my house, but that's more a function of the fact that there are lots of walls that need to be decorated than anything else.
That being said, there are some pieces in my house that I really like. A few originals, drawings of my kids, one of my house and some other stuff, and some prints that are good, in my humble and non-professional opinion.
This picture on the left is crap. I'm no expert. I can just smell it.