Also it can be used to capture certain expressions and tell a story nerves, excitement, ponderous. It can capture the hustle and bustle of the day if some of the bridesmaids are about helping too, it doesn't necessarily have to be cliche, not that there is anything wrong with same old same old, it's obviously repeated because people like. If there had been forums when photography was getting started perhaps there would have been a thread on shooting the rings or the cake. As with such there is plenty of room for creativity in a well used shot methinks. One final point, the bride will also possibly like the shot on viewing because it will look like she pictures herself, being more used to seeing her reflection.