[quote=@Medjedovic]
[@Sisyphus]Are Fae and Changelings aware of how the Mask looks?
[/quote]

In most cases... sort of. They might have picked up what they look like from descriptions of mortals, or many of them have the power to 'strengthen' it temporarily (like, a few minutes), so that they and other Changelings can see it, but as rule they don't like to dwell on it. That's one of the reasons meeting a Fetch can be so traumatic for a Changeling; it's literally your Mask, everything you could have been if the Fae hadn't claimed you, staring you in the eyes.