It does look like fireworks. I love kaleidoscopes too. My wonderful Bible study group gave me one several years ago :). Never thought to take a picture of it . . .
Cool shot... kaleidoscope shots are hard! I did some my first year and made a collage of them... but I was so bad about tagging I would have to spend too much time trying to find it, so I can't point you to it! :)
Beautiful.