Film motif doesn't make sense, since its use is prohibited. A camera (even a film one -- who can tell?) would have worked better. Maybe a film can with the international red circle-slash ("Not") symbol would work though...
Hmm.. well I'm back to this one.. I really like it more and more. Two things: 1) Make the Ribbon a little bigger, bluer, slightly 3D looking (more texture), and finally, locate it higher and behind the "dpchallenge" at the top. 2) Make the URL bigger or stand out more some how. This one could also be the winner. :) Good job!!
I like the idea. I think you should just do away with the ribbon and move the film roll more to the left. Also try making the film and roll look more distinct - darker colors at least
Interesting idea but the film cannister really doesn't say DIGITAL photography to me. That said, it's nicely put together. Not keen on textured green background.
5, Kavey