Loved the graphics and mood! I think the use of theme was also done pretty well. A nice looking 3D game is hard to pull off in a game jam, so props for that!
I have to say, the controls felt a little strange to me, as I moved around, the camera shook a little too much to me, and especially during the attack animation.
It also felt a bit odd that, to attack, I had to stop walking, wait for the walk animation to end, and only then can I begin my attack, the animation of which also takes a long time to come out and hit the enemy.
Even though the gameplay mechanics are super simple (Attack the guy, and he dies. If the guy touches you, you die), it didn't feel very straight-forward. I wasn't sure the enemy was an enemy at first, because he wasn't coming towards me, he was just standing there looking at me. I had to walk up to him and attack. Sometimes, they weren't even looking at me and they didn't care.
Overall, the mood was great, the graphics felt very nice, and it was nice and simple! I think more accessibility in the gameplay, more polished mechanics, and maybe a bit more work on the AI, it would feel much nicer ^_^
-D