Fireworks night 2007, Shuttleworth

I'd never tried firework photography before so I thought I'd give it a go this year at the show they put on at Shuttleworth. Despite using my crappy old tripod the pictures didn't turn out too bad, they were all taken on either Velvia 50 or Fuji PRO160 at approx f/8 with a cable release holding the shutter open for about 5-10 seconds each time (the darker shots are the Velvia ones). I'm not sure if I prefer the darker abstract images from the Veliva or the more conventional ones from the 160 speed film.