Once I wrote in the contest thread that it is going to be a very hard job, to pick winners for BTC prize and also to merit the nice artworks. Double prize, Double work.
I hope you have already marked which artworks you'll be going to pick as winners during merit giveaway, otherwise your head will really explode in next run.
Unfortunately, for theymos that wouldn't be fair to the other submissions. I'm guessing he'll review every single piece of art submitted until the cut off date, and time. Fortunately, for theymos we are approaching that. Honestly, I had no idea that this would generate such a buzz, and there's been multiple users crawling out of the woodwork who have been inactive for a while or completely new users.