Her face does look a tad shiny. But the pose is good. I might clone that stray hair off of her jacket sleeve. I might try the "move the light" tutorial on this one to relight her face in a more flattering way.
Don't you wish it was more socially-acceptable to carry a reflector to weddings? (well, I do anyways!)
I think the posing is good, but the face seems underexposed.
This feels wrong to criticize such accomplished photographers!