This photo is a grear illustration of bondage because, as you can see, the string around the woman is fairly thin and could be easily broken, therefore, her bondage is an illusion. This concept is best illustrated in the novel when an illusionist "traps" her audience by seemingly making the exits disappear, causing a panic. However, in truth, the viewers were never truly trapped, thus making their bondage only as resticting as they allowed it to be.
I love the natural feeling Andy has gave this picture. He has broken rocks almost perfectly through the middle to create a path. The white layer near the crack also make the picture even more appealing.