I didn’t put on any picture when I was meeting shidduchim. I felt it was shallow and wrong.
Although now when I try to help my friends and their friends etc if I don’t know the person personally and never met, a pic can reveal allot of what the words describing their personality,level of Yiddishkeit, chassidishkeit, tznius etc.
So now I’m not sure….but definitely not multiple pics, and one where you look your best.