Very original idea, don't think I've played anything like this before. And it definitely fits the theme. I played for a while (not long enough to get to 43 points), but couldn't really come up with much of a strategy. Do you have a good one?
Well done on submitting to your first gamejam! Since you are asking for feedback, my main thoughts are to introduce the game mechanics slowly (I had to read the instructions 2-3 times before I knew what was going on). This can be quite hard to implement, but I think you'll get more players who otherwise would not want to read the instructions. :)