After searching through my photos and artwork, I realize that I rarely use isolation to emphasize my focal point. The illustration above from Bonnie Skaalid shows a still life set up. Because the rest of the pieces are grouped together and the glass is separated from the main group, it becomes the focal point.
Quilter Beth in which she demonstrates using isolation to emphasize the focal point. The triangular piece at the bottom looks as if it is falling away from the rest of the group and your eye is therefore drawn to that piece.
Do you use isolation for emphasis? Look through your recent work and see if you find any focal points that are emphasized with isolation. Do leave a comment and let us take a look!