I just finished revising an older piece of artwork. The scene is one that I did several years ago, but I added a different sunset and changed the foreground. Also tried to lighten the landscape by putting fresh highlights on the sagebrush. The sunset is a modification on the one I used in the cover of the alien shoreline in the cover for Third Contact, which is itself a modification of a sample image which came with the computer years ago.
This picture is 100% computer imagery, done with nothing more than the Paint program that comes stock with Windows. I'd love to be able to paint this in acrylic on a good-sized canvas. I'd sell it, or hang it in my study.