This is a good thread. For myself I'd probably say:
Design - 4/5:
I initially thought my design was really good, but after reading some of the feedback that people gave me, I really started to see where I could improve
Adherence to Theme - 5/5
I really wanted to make sure that all the mechanics really stuck to the theme so only having one usage of everything was crucial. They ended up all meshing together really well as well, so I'm quite proud of it
Originality - 2/5
It's not the most original idea in the world, considering that it's basically Geometry Wars with a twist, but I wanted to use a game that I knew so that there would be less for me to come up with while in the designing process
Here it is for you to try:
https://bigfraudbigfraud.itch.io/gmtkjam2019
I'd actually say it's quite a bit different from Geometry Wars. All it really share is genre : Multi-directional Shooter/Twinstick Shooter (at least from my understanding of Geometry Wars). It's a good idea to take a game you know and put a twist on it, and things usually change during development. My original game idea included enemies but I decided to go without it because the game was hard enough as is. I liked your game a lot. You should add some juice after the jam to make it really fun!