This is an alright setup here, and good lighting. Though, I must say, their faces look a bit green to me. The only complaint I have with this photograph is their expressions and focal points. They seem to be looking at slightly different points - just barely though. The one thing I would expect to come across in an image such as this would be their joy on their wedding day ... and that doesn't seem apparent here. When I look at it, I see two people that could be complete strangers - nothing particularly stands out screaming "I will be with this man/woman for the rest of my life." But, I probably simply have different expectations when it comes to wedding shots.
It is well composed and balanced. Other than the greenish skin, it has good color.