When princess Cadence in the second episode of Canterlot Royal Wedding said:"She´s a changeling," the first thing that came to my mind was the Changeling from Warhammer 40K chaos daemons.
So I decided to make this joke.
The background is a picture from the changeling miniature blister [link]
I just overpaited the figure and added the changeling queen picture. She was cut out from a printscreen from the MLP:FIM episode Canterlot Royal Wedding.