I don't mind seeing other people's recent photos - but I do mind them seeing mine. How can I make sure my recent photos are not showing up on other people's people widget?
According to Gmail support:
Thumbnails of recent photos your contacts sent you
Says to me that the photos you'd see are the same you'd see if you visited the person's Google+ profile. There won't be any photos exposed to a person that you're not already letting them see.