This is a really well executed shot. It stands out from the crowd of fireworks photos. The composition really makes this shot what it is. The varying textures are all in beautiful balance.
Did you get lucky or did you mean to do this? I'm looking forward to end of the challenge so that I can read the comments you hopefully left with this image. I love it. Most photos of fireworks are a little boring to me but this is very eye catching. Nice job! One thing though... you see that little trail of light on the right? I would have cloned that out as it detracts from your image just a little bit.