Shutter speed is the term used to describe the motion and exposure time of a subject in a photo. A fast shutter allows the photographer to catch a fast-moving object, and it also depends on the ISO. The faster the shutter speed, the more light required, since it captures the action quickly and clearly.
This photo is the best one from our shutter speed photoshoot because it has a great contrast between the background and subject. It was also shot at 1″, which captures the motion of the subject (which was myself) well.
I like the composition of the photo which uses the geometry of the stairs to divide the frame in a dynamic way. The figure does not seem as blurry as one would expect for a 1 second exposure. More motion blur is recorded when the motion moves across the picture plane than when the motion is towards the camera as it is here.