This is super ambitious for a game jam game. Congrats for submitting your final game!
The graphics and world look gorgeous, however, the rest of it didn't really click for me. There is minimal player feedback on dealing or taking damage, making it really hard to learn how to best use the combat. Adding some more care to the camera would go a long way, too. Currently, there's too much blur when swinging the camera around to try to fight guys.
I also bugged it out. I think I was able to continue swinging my sword after I died versus a boss and so I got both endings back to back, but died immediately upon starting the next run.
Pretty cool, but lowering your scope instead of trying to build a foundation for a full game might server you better for learning. This is a big project you're proposing. Start smaller and learn your way up to something big like this!