Welcome! I've made a few phone wallpaper backgrounds from close up pictures of Christian's murals. These are completely free, no catch! Just right click on the image and "Save Image As" or just tap to enlarge it on your phone and take a screen shot.
If you'd like to stay up to date with ol' C. Stanley Creative, learn about upcoming print and merch drops, and be the first to learn about other freebies, there is a newsletter signup form at the bottom of the page. I don't have time to be a super frequent newsletter producer, so you won't be getting spammed. No obligation!
Keep it creative!