Traditional photographers have long been able to create two exposures on a single piece of film. This technique is now also easily achieved digitally - overlaying images using a ‘multiply’ or transparency filter, for example. This example shows how the integration of two different scenes can help to strengthen the ideas communicated within an artwork.
One of the more traditional photographs to add to your list is of the gown hanging in front of a mirror. It's a great way to show off all the details of your gown before all the hustle and bustle begins.