She does look a lot like Roxana, but Roxana has a tattoo on top of her right leg and Katka doesn't. Also Katka has a big tattoo on the back of her left shoulder and Roxana doesn't have it.
In that site they call her Marian. You have to scroll down to the bottom to see her and the name above her picture (4th from the bottom).
http://www.zooweekly.co.uk/BoobyBlog