Great job. I'm curious.... how did you get the circles/spirals to be so round and of consistent radius? Did you just hold a sparkler in your hand and spin your arm around, or did you attach it to a stick or wheel of some sort? The bright light in the top left (which I think is the moon) is fighting for attention with center of the concentric circle tunnel. I find my eyes darting back and forth between these two points. Did you include the moon in the shot for this reason? Now I have to get me some sparklers and try this cool effect myself.