Ok, thanks. It was just supposed to be a really quick animation but I will deffinetly edit it. Thanks for the suggestions!

Animation is quite nice for a start.

But it explodes too fast - make starting pole slide out of view and let a rocket fly a little in free space. Also blackout after explosion happens too fast so it is hard to appreciate what just happened - give viewer rest for a little.

Also check real videos of fireworks - usualy they have some sparkles here and there, interesting patterns and color combinations, so they give feeling of holiday, celebration, not an air attack.