Let someone else TOFTT.
Since she posts with unblurred pics, it may also be that her appearance has changed in an unfortunate way.

 
Or she's just offended by the question.

Just wondering what you guys (and gals) think. IF she has verifiable site with photos (Insta, OF, maybe even a verified Twitter, ...), and that is HER site under HER control, ask her to agree to post a specific and "innocent" photo.  
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Maybe "OK. I'll wear my T-shirt that says "I'm with stupid" over an arrow. I'll take a pic with my arms akimbo and the latest issue of Cosmo tucked into my waistband. I'll post it to Twitter in less than an hour. ... And you better not flake on me!")  Or maybe just any old selfie with a news headline or date in the photo.
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A FAKE person can try to post such a FAKED photo as a reply to the real Twitter but their posting name won't match the owner's name. I don't know how Insta, OF, and other sites work, but probably no way to post a FAKED photo and make it seem like it was posted by the account owner.
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I don't think I have to warn anyone about being fooled by ALMOST the same name. "Harley Deane" or "Harley Daen" or ... instead of "Harley Dean."

floorcloff,  
   First of all, If Harley Dean has not responded back to you, then that means she's either busy or just not interested.

If you go to the NYC eros, it’s really her in the ad. And the contact information is accurate. HOWEVER she does require a deposit which I’d advise to avoid. Not because she is known to be a thief but because why risk it?