Here is some cross lighting using two strobe at 1/16 power set at even distance. Again using 1/250 to kill the ambient light from the over head light and ISO 100 to kill the strobe/flash spill. The aperture was set to F/4 to control flash exposure.
The great thing about my models is they don't move and their always a willing subject.


Model Canon EOS 50D
Exposure time 1/250 s
F-number f/4
Exposure program Manual
ISO speed ratings ISO 100
Subject distance 0.94 m
Metering mode Pattern
Focal length 44 mm