Ya know, if you submitted this for stock photography, you should keep the entire shot - it has enough non-descript room above and below the direct subject for titles and credits and slug-lines. It gives Creative Directors and graphic artists room for play.
There can be pro and con arguments about the movement in the shot, but I kinda like the motion in this one. So many times I've seen stock shots of people "doing" something and it was obviously staged and they're frozen - it just looks fake to me - I think this looks fine.

I remember you were having trouble or doubts about your settings when shooting this - they were tough conditions and you did just great with it. There's only just so much you can do with low-light and handheld (ahh, happy thoughts that I'll never shoot another wedding again!) before introducing excessive grain by pushing the ISO higher and higher.

As far as the crops go - I'm liking TwoPynts' and Inshaala's - either save a little bit of headroom (just personal taste) or go WAY in and cut to the chase.

Sorry I couldn't add too much. Side note: I really like the back-and-forth going on with these crits! Good stuff being pointed above by all!

-Lew ;-)