Hehehe... YES. I remember during the end of NGMT you said you wanted a evil dark circus round. Well you did it round, or not :D Pretty much every chord change and instrument choice all work towards this goal, particularly the accordion... I love the accordion. (And I'm seeing your matchup with Steampianist was really awesome because you guys really do have similar styles!)
Unlike TheDoor6 I thought that the percussion at :33 was just awesome. It made the whole piece come together and I was left wishing I could have ideas that inventive! Plus, you mixed it masterfully. I admit that I kinda wished it could have gone on a little longer, because it was really enjoyable. I really love the sax(?) melody that's going at the same time, though maybe it could have been a tad louder?
Something that isn't necessarily good or bad, but just to be aware of, is that the transitions in this piece are not super obvious, which means that a casual listener might have trouble understanding the piece or thinking it's disjointed. Admittedly I thought the same thing too until I paid closer attention on further listens.
I know were super time-crunched for this piece, which is kind of sad because this is already a great piece, so who knows what you could have done with more time.
Really great work! Good luck with NGADM!
P.S. Do you like homestuck? :D