Okay, question: I have absolutely no knowledge, so does that fall hairband come as just a hairband or, like, as a set? (If this sounds newb-ish, sorry )
Hovering over the item will give you the item's Name. So if the poses both display the same name, then they are from the same set. Just for future reference when using the Dream Avatar maker.
Also, yes, it comes as a set. Like Angelic.Demon said. I've moved this topic to the Information Kiosk as well.