Emphasis by Isolation

A variation on emphasis is something known as isolation. This is caused when all the elements are the same, but one stands out on it's own.

This cover of Astonishing X-men shows good emphasis by isolation. All the figures are the exact thing. The White Queen of the years of comics has changed her clothing and costume many times but the face is still the same. The one with her back turned is the same as well, but different and isolated because her back is turned to the intended viewer.