To be honest. I don't remember Karina on the show. She needs to pump up the energy level a bit more since television sucks energy so if you act too normal you portray mellow energy on tv. She looks good in pics but not so much in the TV Screen. I picked Lisa cause of her body and with proper styling she can exude lots of sexiness.
I don't think those picks will really affect Audris that much. Nasstaja had something similar with some pics of her being drunk and kissing other girls and she won. No se que color le puedan dar en show a esas fotos ya que no se ven del todo pornograficas.