|Greetings from the Critique Club!
Wow! You sure this is your first time? Not bad, not bad at all, well done!
I like the colors, very nice, a touch, just a teeeny, tiny touch of contrast might bring them out just a bit more. The composition and crop leave me wanting though. There is a large amount of negative space that doesn't compliment the fireworks. Negative space can be your friend but in this instance, to me personally, the space left of the right side of the fireworks is too much. If you were to crop that out, using the rule of thirds, placing the firworks on the right third or even cropping off on the left, centering the firworks more, this would, to me, compliment the shot much better. The lights on the bottom are also a bit distracting, they are there, fuzzy but don't add anything to the shot for me. I would have cropped them out completely.
If you play with this some on the cropping, I would love to see the results. Also, I would sharpen it just a bit, to really bring out the edges on the fireworks, not a lot, just a tiny touch.
But again, for a first time effort, this is a wonderful shot. I wish I could shoot fireworks this well, LOL :)
Looking at your other work, you are going to be a force to reckon with here on DPC! Well done!
Hope my comments help and Good Luck in Future Challenges.