Yellow Red And Green Finale
I think they were going for the colors of the Mexico flag on this one. Cameras record colours different that human eyes perceive them.
Fireworks On Cloudy Night
This timelapse is from 948 images, starting at 8:49pm (f8, 1/200, ISO 100) and taking photos every 6 seconds until 10:28pm (f8, 5 seconds, ISO 100). I generally switch the mode from Aperture priority to manual mode near the start of the fireworks. The focal length on the lens was set to 40mm.
Fireworks On Clear Night
This timelapse started at 8:41pm (F8.0, 1/320, ISO 100) and photos were taken every 6 seconds until 10:35pm (f8, 4 seconds, ISO 100) for 1137 frames.
The lens was set to 34mm.
Launching Fireworks From Park
This is a composite of two images - I missed the smoulder firework in the bottom right corner slightly. Having the ground effect really makes the photo, otherwise you just get vertical streaks as the lights fly into the sky.