99% finished with this sculpture... launching soon

This has been insanely annoying to make, but is also insanely satisfying to watch now it's finished. 

I like the fact that the stairs just seem to float in the air, and the marble appears magically back at the beginning again. It's like two optical illusions in one sculpture. 

This has all sorts of meaning for me, but feel free to add your own.

Proof of annoyingness: