Playing with Light

This is a photo of a crystal with a violin within it, which has been lit from underneath. It was taken in December 2004.
The technical information is as follows.
Camera - Canon EOS 300D
Shutter speed - 30s
Aperture - f22.0
Lens - Cosina 100mm f3.5 Macro
Focal Length 100mm
ISO 100
Filter - UV/Haze
Tripod