I wasn't sure at first, as I agree in the 18eighteen set her face does look different in some photos - but I put that down to the heavy lipstick and different hairstyle more than anything. From some of the shots I'm entirely convinced it's Barbora. But the best way to decide is to compare moles, and there is a distinctive arrangement on her face and neck seen on both Barbora and "Bobbi". Other marks elsewhere also correspond which are less clear on the 18eighteen pics, but they are renowned for tidying up/ruining pictures by airbrushing out blemishes - I'm surprised they've left in so many moles by their standards this time.
So, I'm convinced 99.99% that this is Barbora... but second opinions are welcome!