I think the only layer....

is the 'faux' mirror of her. Not the guy, which is as you say... just a mirror reflection.

That would be the easiest, seems to me, since it's simply superimposed layer around the wood frame of the second 'faux' mirror... which I what I think you're saying?

The transition would be easy... you add the layer between the pans so no 'splice' would be noticeable.