It's..going to be difficult. I mean, technically, sending an email or asking people might work, but maybe I'm too much of a pessimist regarding people. I honestly don't think they would accommodate your request, frankly speaking, how would you know? plus it will give them their 3.5 seconds of fame in any conversation related to you...
It's an interesting request though..I think..how i'd go about it is first delete the pictures I have access to on soc med and even on the phone hard drive.
Next is try to request that the people who own other pics of me delete those pics. Tell em i got a crazy x or something (which I do anyway)
If i had the cash i'd probably hire someone from the dark web to scrub the internet for any mention of me, any photo of me and have them compile a report and delete it.