You've captured an image that always seduces me into a daze when I see it in real life. Colours are excellent and the centre is focussed, I'm wondering if a different depth of field was a possibility in the circumstances? This would have made the whole image sharp rather than the centre only. Of course, maybe you only wanted the centre sharp! As a wallpaper I found the blur around the edges somewhat distracting from the awesome colour and fluidity you've captured.
firey