This is what Our Lady of Fatima told the Children:
Our Lady appeared to Jacinta several times between December 1919 and February 1920. Our Lady told her many things including:
"The sins of the world are very great … If men only knew what eternity is, they would do everything in their power to change their lives.”
"Fly from riches and luxury; love poverty and silence; have charity, even for bad people.”
"More souls go to Hell because of sins of the flesh than for any other reason.”
"Certain fashions will be introduced that will offend Our Lord very much.”
"The Mother of God wants more virgin souls bound by the vow of chastity.”
"Woe to women wanting in modesty.”
"Many marriages are not of God and do not please Our Lord.”
"Let men avoid greed, lies, envy, blasphemy, impurity.”
"Never speak ill of anyone. Never complain or murmur. Be very patient, for patience leads us to Heaven.”
If you GF and her parents have chosen this path and are going to follow the fashion industry.

You would be better off seeking another path.