Strobist Info: Sigma EF 500 DG Super bounced off of an umbrella placed above the water tank. Second flash, Vivitar 2800 (Plugged on Popular Shoe Slave Adapter) fired towards a white plastic sheet used as background. Both flashes fired in optical slave mode.
My photos available for sale (For Commercial Use) on Gettyimages
View all of my photos (Sorted by interestingness) on one page here