Take it but be courteous and subtle about it. Don’t get other people in the shots, try not to use flash.

No, I doubt that either store will allow you to take photos in their store, whether it is trying on makeup or pictures of makeup itself. Perhaps if you have a makeover, the artist might let you take a photo. But if you aren’t buying anything and just want to take photos, you might be asked to leave. Those high dollar shops are out to make money and they certainly don’t want people in the way of potential customers.
Sorry. Stick to websites or catalogs.

Well I would do it a little bit secretly because you never know.

i dont see anything wrong with it, as long as u dont use flash, or take pics of other ppl. but u can ask workers there to be sure when u go. have fun!