Congratulations Joe!
Photographing birds in the back yard yesterday , but they were not co-operating so I turned my attention, and the 600 f4, on the Hybiscus.
Cropped for comp and darkened the BG in CS6 as well as the addition of the stroke.
To quote a friend "One of the most expensive macro lenses in the world".(Lou Buonomo)
800ISO f5.6 at 1/1250th
Manual fill flash at 1/8th power