I think the reference to Queen Elizabeth was a good idea, but I wouldn't have gotten that at all. Since two of them mention that that knocks those out. I also didn't get the curved crown was slipping, because unicorns are suppose to have curved horns, so I thought it was too general, but it did point to her being a unicorn. I'm sorry if I look like I'm over analyzing, and I'm not trying to be mean about it also.
Credits to picture on page, since they won't show up since they are in black: http://twiwolf.deviantart.com/art/Free-Love-362011598