If you feel bummed out, having done all that work curating the photos, and not being able to post them as your own mod due to legal concerns, then as I see it there are two things you can do:
- You can just post your pic mod, and take the "legal risk", which all it amounts to is that someone in those photos may email you and ask you to take their photo down since they don't want to be a URW character and get killed by Lynxes in horrible ways. Honestly, what's the real likelyhood of that happening or anyone caring enough, considering you got the photos from openly available public sources? From a legal POV, it would be different if URW creators themselves included other people's photos without permission - they would never do that - because it makes them theoretically liable to owing money compensation to the people in said photos. Since you're just a modder and you make zero income from your mod, nobody cares.
- You could experiment with NanoBanana2, promising and powerful image AI google recently put out. You can find places that let you use it for free (
https://aistudio.google.com/), and the idea would be to get this AI to make your own iron age stylizations of the photos you selected for your mod. That way it's no longer even the original people pictured, but AI stylizations of something that vaguelly looks like them.
Don't be disheartened and don't let legal concerns choke out that creative spark to see your selections actually come to life in URW!