I actually carried my tripod with me and shot this at 200 ISO right after dusk using tungsten white balance, which made the sky become a much more vibrant blue. This was a 4 second exposure at f/3.5. I think a slightly shorter exposure would have made the fireworks a little more defined. Can't win em' all.
This was inside a storage container at a church that collects and gives out clothes and food to those in need. The blown out area behind her is outside, I tried doing some balancing with a strobe, but it didn't look any good in this situation and I would have lost the window light.