I am planning on entering my first contest pretty soon. I have a question concerning one of the models I'm entering. I did a build of the Moebius Invisible man and am pretty happy with the results. However, I did not finish the back of the bookcase. At the time, I didn't think it was very important, but now I am wondering how it will effect me in the contest. Any advice on this and on contests in general would be greatly appreciated.