Then from what you're saying, we shouldn't be able to submit more than one shot. "Technical excellence," after all. We should only be able to submit ONE photograph if this were a real monthly contest, and if we're going to rank them at the end of each contest period, that means 1 photo submitted per month, no more. It might also mean that the contest is very slow until the end, since nobody will submit anything in case they get a better idea or better shot later. It really depends on what your aim is.
And with regards to what is submitted, I don't think it has to be "technically excellent, which was one of your criteria. It just has to be creative, which was your other criteria. That doesn't mean it has to be taken at a weird angle that nobody else would have thought of. However, it does mean coming up with something that fits the assignment that nobody thought to take. That's sort of why I took the photo with the shoes hanging from the power lines. You're the one person who kind of missed the point, but it was kind of a funny pic for "Insanity of Humanity."
@Clix Pix: You asked about your 2 submissions. If it was solely up to me to decide whether both photos are different enough to count, I'd say "No". They're of the exact same thing, regardless of angle. I think if you're going to take a photo of the same thing, you need to pick which one is best. There are lots of angles and possible ways to photograph that rack, but you can't submit them all, or arguably, you can't even submit 2.