Bellows taking shape

Tonight I managed to finish the glue up on the bellows panels and glue a test bellows leather up. It appears to have worked perfectly, but the leather I selected was not as air tight as I had hoped, there are minor defects that I must not have found during the first test. The leather is 0.02" thick, which is about half of what is recommended by the pros. I contact cemented two pieces together, which brought it to the proper thickness AND eliminated the leaks.