Ya I don't know what its called but I followed the tutorial that Warfang made and I came up with this. I saw how he made it with one so I cropped images and put them behind it and this is what I got.
Pretty good, though a little too busy. It is a nice tutorial though, I use photoshop and it helped me out too. Anyways, I think it's pretty good, though there's too much going on it it. I suggest one or two pictures, not a different one for each letter. But that's just my opinion.