Here are some fireworks from the fourth here in Austin. Below is Lake Austin, and this was shot from the 360 Bridge.
As for the process, it was a tough night because I was on the edge of a bridge that was rumbling as cars went across it, it was very windy, and there was a light driving rain right into my lens. I had to wipe down the lens after every few exposure and try to cup my hands over the top during the shot.
This was an HDR of three exposures at -2, 0 and +2. The Aperture was f6.3; ISO 200; Focal Length 27mm;