No agency in the world has hotties like these without MANY reviews.  To get a hottie an agency must be able to demonstrate to her that she will be able to get $300 a date and have as many dates as she wants.  This means that they must be well established.

I didn't bother, but look up these photos up on tineye.  They probably are all euro models.  The chance that you will ever see one of them if you contact these clowns is lower than the chance that your provider really, truly does want to do you for free.

I'm gonna be visiting Miami in a couple of months and I've already been doing my research and was also intrigued by this ad/agency. Here's what I learned, using google image search

Kanela is also a Cairo, Egypt escort going by the name Sally,    
     http://2escorts.net/escort/Egypt/Cairo/7.html‎

She's used as a "teaser" pic for this European agency:  http://models-ad.com/

She's also known as Millanna for a Dubai agency:  

      http://modelscompanion.com/?page=girls/millanna**

 
This is where I stopped and paid heed to the old adage:  If it looks to good to be true, it probably is.

Hope this help