This piece started out very different, and after a long struggle, I finally shaped it into something I liked.
The original cross shape came from Wikimedia Commons. I manipulated it in Illustrator and then took it into Photoshop. The clounds image came from Colorburned. I used some purchased Photoshop brushes to complete the background.
This is available as a print, but I changed the border with more Photoshop brushes for the t-shirt version.