Half naked is an interesting word. you can use this word for those who wear skirt and top or salwar-sameez, depends upon your choice..
There is nothing called Iranian culture, Iranian culture was demolished when All persian were converted to Islam, Its now Arabic culture which ate all other culture came into its way.
Modernization and liberalism means you do what you like to do, but under the state law. State may be liberal enough to understand the ppl wish. State must not implement tyrannic middle age barbaric law/ritual on its subject.
Wearing western dress is not bad. If we go with your logic 9 out of 10 women on earth are naked/half-naked.
Their identity lost long back, Now they are carrying Arab identity. Yeah I have seen their identity now. I remember one photo in PDF, "A police women in burka. "