Casino du Lac Leamy Sound of Light, Ottawa (Canada)
August 2012, great fireworks by Pyro Spectaculars (USA)
A few different pictures

Rare (at least on this web site:), a picture with only (colored) flashes

Butterflies
Half globe-shaped burst
of stars

Smiley ;)

"Whaou" effect guaranteed with the high resolution version of this picture :)
Thanks Pyro Spectaculars team for this wonderful show! A lot more pictures are available.