No, sorry. I tend to do portrait mode a lot, especially if I'm using my 50mm lens.
Did you try looking through Mark's shots?
If you want to use my photo, you could make the canvas the size you want, then add my photo in the center, and use the eye dropper to determine the color of the sky and fill the background layer with the same color. I did this for my (orange) castle at night layout... you can't really tell where the photo stops and the 'paint' begins.