Yes, I use PS. To expand it would take some more effort...Thank you for the kind comments.
Perhaps, if you were to make it 1366 x 768 (my screen resolution *cough*), then you could maybe put your image in the middle? And fill the rest of the new space with the background color. This way you wouldn't need to add more to your design, and the center would be the focal point.
I apologize, I just truly want this as my wallpaper..
Here's a nitpick. The letters "race" from the word, Grace, appear on his clothing. I would move that.