After waiting to play, I can finally say: it's good :)
I liked the art and exploring the levels. The atmosphere is also very good. The only thing I didn't like that much were the sniper ducks. They seemed a out of place given the rest of the game's vibes (and they are OP). A simple menu would be a welcome addition next time as well.
All of that being said, and considering it's your first entry for GWJ, this is a very solid and fun game, good job