I think this is the one our op is touting
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Well spotted - couldn't find a Yanna on AW and didn't check Vivastreet because they are all Romanian scammers.
Sure enough the lovely Yanna turns out to be Penthouse model CJ Miles from Las Vegas and her pics are all over Pinterest. Must try harder with the tout next time Steve (or should that be Sergei?)
By the way for those who want to do reverse image search from a phone just found an app called Veracity that worked a treat as Google reverse image search is a bit of a pain on mobile.