Very impressive work, man. A very unique artstyle that probably took time and fancy flying to pull off with a solid shooter feel. Frankly, I think it's the best fps I've played so far in the jam.
One thing I'd say to make an improvement though: I felt like the explosive charges that one enemy shoots out are very difficult to avoid. I feel like no matter how far away I am from them, they always deal damage to me. I'm unsure how to avoid them.
That though is really the only improvement point I suggest. Really solid work overall.