This year, the strategy I used is to look for changes. When I think I got a variety on one shot, I forward to the next frame. While it looks like a good strategy, it doesn't work for this shot, and it doesn't seem to work overall.
I am looking at ways to put more fireworks into one frame, to make it look more lively.
Also, I realised this year I didn't have any of the traditional fireworks shots, ie those with long streaks. What have I done wrong?