This is a combination of two images. Terragen can't yet add the smoke and debris, so I did that part in Bryce. Which came out so well, it made me want to redo the Terragen part, but I had to stop playing somewhere.
When you make your own images, remember after you finish, and before your ender, try wild new camera settings. This image improved greatly after widening the field of view. (I stopped short of tilting to the side.)