TooManyShots wrote in post #17937309
I think her presence should be more subtle. How about the couples holding something of sentimental value of his deceased mother?
Her face as an angel? No offense..is so cliché and are they Christians? What if they are Jewish???
I hope I'm not stepping on toes here (forum rule: don't discuss religion), but the point you raise is one of a cluster of potential concerns. Even assuming that everyone involved is Christian, the OP's friend may not believe as the OP does. In the Bible, angels aren't something that humans become after death. Angels are a different kind of being. Modern cartoon angels with halo and wings are a caricature of the popular (nonbiblical) conception of angels.
The couple could hold something, as you suggest, or they could light a candle in front of a photo of the mother, but any such photos would require posing them. The OP's post doesn't tell me that that's what she wants to do or can do. Let's wait and find out whether she's "the" photographer or a guest.