Thanks willrobb, handsomerob, briansquibb and K-amps.
The first two images were photographed with a 5D2 using it's center AF point.
K-amps & thepancakeman, good eye. I was shooting at f/2.0 and did not crop so only the camera's in the DoF. As I am not used to shooting portraits with the lens I miscalculated the DoF.
briansquibba I would buy this lens if you need an extra stop of IS, an extra stop of light and the bokeh. If you need neither then the Canon EF 70-200mm f/2.8L IS II USM
is more than sufficient.