Photo: Nicely done; shows enough of everything to describe exactly what the occasion is.
Finishing: Blacks are black, whites are white. Good tonality without it seeming flat. My eye keeps getting drawn to the post on the left and, if it was me, I'd have cropped it out. That's just my personal view though.
I wish I had the stones to do weddings!
Like the post before stated, great tones.
What I think could use a little work is the relative placement of the bride and groom. I feel that in the shot as it currently is, there is either too little or too much bride. By this I mean that shooting a little to the left would have given the shot a bit of mystery by only showing the bride's hand (this variant would probably benefit from a crop or shooting closer to the subjects too). What is left unseen can often lend an image greater impact.
Otherwise, having the bride and groom rotate 20 degrees clockwise (the background comp is good as it is) to see most of the brides face would also make for a stronger image.
Anyway, it is still a great shot, but shooting a little different could of made it more effective in my opinion.