I like the colors, but it does seem a bit blurry. I don't know if you had it on a tripod or anything, but if you didn't try it with a tripod or set the camera on something sturdy and use the timer to get the shot, this will help prevent the movement more.
Keep trying and you will get a great shot.

Fireworks are HARD to catch. As the prior critique suggests, try to use a tripod or a monopod. A bean bag would work too.

You can also try a slower shutter if you want to get some long trails on them.
It's a good start though. Keep going!

You can get fireworks in only one set: high f/stop (16 to 22) per 3 to 10 sec -- 100 ISO (or default low ISO). With differents set come out this sort of blurry thing

I always like fireworks, but I do agree that they are a little blurry. I too have trouble capturing them clearly. Keep trying and maybe I will learn from you.

A little blurry. A tripod is a must for fireworks to come out well. It's not easy.