What is the Carpenters Guild Doing in my Waterfall?

[Teppie]

Trying to figure out, if it's a reflection tied with the waterfall, meaning that no matter where it goes the Guild does too, or if there's some invisible Carpenter's Guild inside our private rooms.

Original Pic - http://i.imgur.com/ViRaAxT.png



Flipped and Labeled - http://i.imgur.com/6Ulk1h2.png



Location Referenced - http://i.imgur.com/voGg4TA.png