I just double checked the voting and the tiers are completely accurate. The @Sticky_icky entry got the most votes of the entries that did not win Grand Prize or Runner Up, which means it got Tier 1. The entry from @The_Light got the fewest votes among the finalists, hence Tier 3.
As for whether or not entering with two different accounts is against the rules…yes, it is. Rule 5:
I'm going to let @Jennie decide how she wants to handle the prizes, but one of your entries will be disqualified, per that rule. If separate forum accounts were all you needed to enter more than once, everyone would have the incentive to cheat, and that would spoil the spirit of the competition and the fun we're trying to have here