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.
This is one of the only pictures of Queen Victoria smiling. I think this was around the time of her Golden Jubilee. For special occasions, she would wear white shawls and other accent pieces with her black mourning.