Good looking tech demo and great implementation of the 1bit style into a 3D engine.
Opposite to the previous poster, I dont have problems with the prefabs. I'm glad you correctly credited them. What's a pity is that, as you put it, you ran out of time to flesh out the prototype. We can relate as many of us were in projects that lost ourselves in the details and got out of track of the main objective haha.
Cheers