It wasn't really rendered as a "still", it's from an animation - which is a little creepy !
To get some idea of what it's like you could look at the small "gif" version in my R'osity gallery:
this is actually very cool. Abstract art in 3D is a hard job. And this is fairly well done. I'd love if you'd spent a bit more time finishing the piece in photoshop or what ever, just to give some crispyness.