I doubt there is a crime here. I find it interesting. There seems to be some kind of backstory going on that no one can figure out.
Acting as if you're a member of another race is common. But showing pictures of people who are obviously of another race and claiming them as your own to bolster your racial identity is deceptive. It's flat out lying about who you are. Not illegal, but something weird is going on there. If I had a friend who showed me fake pictures of a father and a son who I found out were not really hers, I'd drop her like a hot potato because of her dishonesty both because it's simply unethical and also because it seems mentally ill.