Forget the photo.. have them read some of your posts on the CR, so they can really get a feel for the person you are.
Personaly, I would not consider a shidduch for my kids if I can’t see the person in the real world. Does not have to be a formal intro, but if the person can not get me a visual (at a simcha, at lunch on the avenue), it either means the girl is hermit, or the person doing the intro does not know the girl personaly (my guess, its the latter).
Photos are misleading, and demeaning. As a parent, I’d not ask for, nor supply one.