We all know the JJPrise is HUGE compared to what it should be but don't forget the size/scale. Make sure your design could fit inside. JJ may not care about such things but we should.
Oh, I disagree. It should be the most wonderful thing you can imagine and put to pixels. The very nature of the JJ precludes any consideration for scale. The only thing is that is be impressive. Making sense is the least of his concerns, and it should be the least of the designers for this contest.
The ones we've seen so far are fantastic if not fantastical.