Although I didn't even enter, I decided to put together the solutions for the MotA Jigsaw Puzzle Scavenger Hunt. I saw a bit of a "mini-scandal" with submissions, since some people simply reposted the already-assembled images they found elsewhere. I'll assume that BioWare knew how to weed those out. Regardless, this goes to show how bad a medium for contest submissions Twitter can be :p Let's just say that the first 20 non-disqualified people to submit correct entries for both images won something.
And it's not quite over yet! You still have until November 1 to submit fan art or cosplay pics to the Tallis Art Contest via Twitter. And don't forget that showing up to the Dragon Age panel at NY Comic Con this Saturday in a completed Tallis costume will also net you a prize.
What are these mysterious prizes, you ask? According to @dragonage, "prizes include autographed @feliciaday photos, @Astrogaming headsets, and Bioware Store apparel! Art includes illustration, cosplay, writing, sculpture, plushies, anything your imagination can think of!"