OK HERE WE GO!!!!! This is my suggestion for the contest....
The contest is an Out-of-your-comfort-zone Building contest! There is a long time to make it because we have the whole summer, so e have time for trial and error.
This is how it works build something on a subject you have never posted before. If you haven't made any castle, mordern military, coustom figs, Harry Potter, etc. Build one of those! and post it here, online.
The only rule is that it has to be something you haven't posted yet.
There really isn't any possible judging material for this contest. So the Judge will just pick witch is the best. It will be easy to decide if your first try on this subject is good or bad so the judge will pick the best.