I also have a lot of fun creating images, like this one:
Of course, the goblet doesn't really exist. The vase is real, and so is the moon and the starfields that make up the rim and line the inside of the goblet, but putting them all together is just a computer's imagination.
Here's a larger view of the cover of The Ghost of Charity Alden.
This kind of image is made by compositing a number of layers. In this case, there's the colonial girl herself, rendered translucently on top of the headstone, which is itself rendered against the background of a woods. All of this is shaded to darken the right side and merged with the titling.
Here's are bigger versions of the covers and incidental artwork of Synthia:
And this is Dia...
My kids are getting to be pretty good figure skaters, but they've never even come close to skating on a frozen pond...
...and my other kid is getting really tall:
And, finally, even Salvador Dali could have gotten a little stranger...