The surface was just a piece of white particle board from a broken bookcase that I found in the back of the shed. I hung a piece of tracing paper over my PVC pipe light box frame and set it up outside in full sun. It's a four-image focus stack since the leaf is really tiny and I had to get very close. I used my Sony 30mm macro lens on my NEX 5N. The whole thing was very random. I wanted to do a quick focus stacking test to learn how to do it so I tossed the leaf on the white board and snapped four frames at four focus points with no real planning or design. The fact that it turned out looking OK is nothing more than a happy accident.