As demonstrated by these two images, this mirror imaging thing is tricky on faces that are looking directly into the camera. If you mirror it right down the middle, well, you can see for yourself.
But you can make it more artistic.
It is all about where you draw the mirror line. I could have cut through her nose, or her eyes.
I do like the third eye though. I also might be inventing some new hair styles.
Or maybe not.