This is Anita's Lux (Air).
Shot with Sigma 85mm f/1.4 and 4 studio lights. Had a rough idea of what I wanted before shooting, so when it came to the editing it was some what easier. Editing still took the whole afternoon. The tricky bit was cutting out the background and illumination is a real pain in the ass to achieve the desired outcome.
The staff consists of three layers of visual effects. The first layer is the white orb, the second layer is the spark, and the third layer is the outer glow.
I originally thought this was water, but then later Anita clarified that she was air. Whoops!