strong sense of "circle" here (dont flame me for leaving unconstructive comments, but i really dunno wat else to say about this, except maybe the cropping would show a TINY bit more on the top)
I'm surprised that there are not more fans :) I thought about it - but didn't do it. You did a great job on this shot - it has a wonderful feeling of perspective to it... It has a lot of depth and the blue tinge works well. A little tighter cropping on the right would have worked better imo, to remove the object on the bottom left and the plastic trim of the fan. - 6 -JeB