I really like the look of the game, the colours are crisp and the dotted lines create a nice style. The concept is quite cool too, I don't think I've seen a game that uses the same mechanics before. I hope you do well in the competition
That said, I'm not that big a fan of puzzle games, so once I lost I kind of quit playing. I would've probably enjoyed the game more if it had been modified to be a little bit more action oriented.
For instance, it would've been cool to use the goo mechanics to do a The Blob-like game, where you have to trap tiny people running around and absorb them to become bigger. And at the same time maybe there'd be stuff that hurt the goo, like exploding trucks, things that caught fire or whatever.
I'm sure a lot of casual / puzzle gamers will love it the way it is though