Poster Features My Painting

The University of Colorado put on this production of Our Town recently.  Somehow they found this image of a watercolor I did TEN years ago.  It shows the Denver skyline at sunset.  Anyone who lives here knows it's Denver by the shape of that building in the center.  They asked permission to use the painting on their posters, and of course I said yes. 
I am frequently asked permission to use an image of my work in advertising and promotional materials.  I think it's a good idea for artists to approve these requests because getting your work OUT THERE is the name of the game.  If they offer a use fee, all the better.