Finally found some brick I like for wallpaper. I've been looking for a couple of weeks now and nothing seemed to work out, but I think I got it today. Snapped a picture and done.
So now I'm always on the lookout for good rock wallpaper. It's gotten to the point that everytime I'm in public I'm keeping an eye out to snap a picture of brick or rock. After a little work in post, tweaking the brightness and increasing the saturation a bit, I'm very pleased with this. I used Samsung's editing tools, nothing fancy.