These are pretty awesome, although there is an excess of "What if we saved the environment/achieved world peace" doodles. Not to mention -- two doodles made from hands (see grades 4-6, region 2, and grades 10-12, region 7)???
The ones I like best are the ones that, like real Google Doodles, replace the letters with other objects (check out grades 10-12, region 2 and 3, and grades 7-9, region 1, 5, and 6). I also quite like the one from grades 4-6, region 10.
I think the winner of this competition is going to have their doodle up on Google tomorrow. Not a bad deal.