John,
Cool piece. I really liked the intro (up through 1:50), big fan of that electric piano sound. The sound of it reminded me of No Quarter by Led Zep. The second half was interesting as well but I found one of the synth sounds a little distracting(comes in at 1:50), sort of like a metronome counting away in the background. The layers and dimensions you have created with the pan field are really good. Very solid..
Regards