There are a couple of issues that I see with this picture. (1) The couple is over-exposed, due mainly to the bright sky behind them. This is one of those tricky, and all to common wedding situations. The best way to deal with this IMO, would have been to spot-meter the man's face and perhaps bracket 1/3 on either side. (2) The composition is slightly awkward, and even though the image is vertical, the way the bride is leaning forward tends to make appear slightly skewed. I would suggest that this image could have been made much stronger by moving around to camera right a bit to include some of the Groom's face as well as a vertical (portrait) orientation.
Just my $00.02 worth - your mileage may vary.
~JOhn