This image can be broken down into spiral parts. The bolt represent the focus point of the spiral and the wheel is where the spiral disperse.
Rule of Third
In this image it show two poles in which they are not in the centre. This because the Rule of Third requires you to arrange the object in any four of the vertical and horizontal lines intersect.
Vertical Lines
In this image it shows multiple vertical lines. This is one of many types of structures that can be present in some images that are taken.
Leading Lines (curve).
This is an example of a compositional design elementals of a curved leading line. The end point of this line can either be the middle of this image or at the middle-right.
