Hello @Nikki76,
If you go to your reservations and click on "Print confirmation" for the reservation concerned you will see the profile photos of all guests in the group provided that the guest who made the booking shared the booking with the other guests.
As well as asking all guests to complete their profile you'll have to ask the booking guest to share the booking with each of the other guests.
They can share the booking by following the steps outlined in this article How do I share trip details with others?
Some of my guests have done this and I'm able to click on the profile photos on the "Print confirmation" page to see each guest's profile information.
Steve.