It reminds the viewer that this is just a job. Nothing more. Am I being mechanical? So what. Who are YOU? Nobody.
However, for girls like Liliane and Walleria, it seems a part of their nature not to smile so much. Perhaps they want to smile honestly instead of ***** the emotion. If so, that's some to admire. Mina is the same but she is not a natural performer. She does try but between looking at the camera, herself, and the directors, it's not easy to do a methodical routine and express real emotions.
Andie is expressive, but she seems to be the medium between Mina and Nadine. Like Mina, she is not a natural performer but tries yet like Nadine she seems to be doing a job. She gives the impression of the viewer being lucky to even have her on their screen. She is so hot and she knows it, therefore, she does not need to put a lot of effort into a show. Look at her. Nadine knows she is hot as well but she is definitely the opposite end of Mina...continued.