These kids really are three little angels!
More about this shot ...
The main light was provided by a Canon 580ex Flash fired into a Photogenic Eclipse 60" Umbrella. The background light was from a Canon 550ex Flash. Both flashes were triggered by a Canon ST-E2 Transmitter. The background is a very large piece of white muslin fabric. The background flash is not large/powerful enough to make the entire background completely white - Adobe Photoshop to the rescue.
Camera and Lens Settings
32mm f/10 1/200s
2336 x 3504px