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Obviously we're not talking about mass publication here. The thing is, portraits lose their individuality when a person is aware. They pose for it, even if they don't think they do. As such, I'd really need to be asking them afterwards by which time the whole "soul-stealing" thing would already exist. Anyhow, I'm not sure a person does own their image in this way. Is there a lawyer out there? After all, I sincerely doubt that passers by in films claim royalties from the production company, or those on tv, or those photographed in backgrounds, etc etc etc.