There's a difference between looking beautiful and making yourself look like something that has become culturally associated with 'being easy'. That's why a woman can look sexy in a business suit but be treated respectfully and why another woman can wear a low cut top and short shorts and be treated like a prostitute by creepy men.
Yeah, I do think there is something to say about dressing modestly. There's nothing wrong with being attractive and I would never force women to dress a certain way, but women can command more respect and develop appropriate self-esteem when they don't make their bodies the focal point (I mean as much as that is possible since a defined figure still shows). I also don't think they should have to cover their faces, but rather the face should be the focal point, especially the eyes as portals into one's soul. I guess I take a position of moderation, as in most things.