Ok .... I've done some research regarding her name. Here's what I learned:
Yes, Models.com has her listed as CAROLA KATYDAROSA, but they are not her agency and may have it wrong, since they are the only site that spells it this way. So, I think it's best to by what her agency says.
I found her on her listed agency, Mega Model Brasil: Carolla (no last name, and note the double L in her first name). All the other Google references have her as Carola Katy Da Rosa, including the link to Mega Model.
So, working with this current information from her agency, and the show card from Major Model Mgmt., above, I will change the thread title to Carola Katy Da Rosa A.K.A. Carolla