Dude this is the weirdest thing to bring up and very inappropriate. You’re not in control of your friend’s wardrobe and besides, what are you actually implying is going to happen when she’s not as sufficiently covered as you deem fit? Additionally, and this is pretty important, did you consider whether or not she would have liked to have had her picture posted here especially in the context of the post you made? I take it you didn’t ask her? The fact that you took it for granted that you could just do that fits with a pattern where you also believe you can tell her how to dress. You’re going to need learn to better respect boundaries.