Good shot. I gave it an 8, I think because of the top being out of the frame. Actually the crop seems too tight all the way around. What I love about it is the way you captured the feathery effect caused by the wind.
Beautiful! I think I might have cropped a tiny bit off the right side though. Most of the interest is in the middle, and the darker sky on the left side looks awesome.
Fireworks are nice but having seen so many of them I really need something else in the frame to make it work for me, foreground or backround... Same applies to lighting photos and aurora boralis for example, just those alone do nothing for me unless captured very unusually. This is pretty nice for a photo like that though, of JUST fireworks so I gave it a 6.