The aim of this exercise, as part of "The Art of Photography" Chapter 5 - Narrative and illustration was to provide a single image, which as a singular presents a sense of story in that 'something has just happened'. Activity in itself is often described as difficult to photograph. A photograph in itself freezes a moment in time, and though by means of technical control of the camera e.g. shutter speed, the photographer can aid the implied notion of action, there is is still that sense of nil movement in the photographic still image.
Conceptually the idea presented in this exercise requirement proposed a degree of abstraction from the described activity. The image should present an evidence of action to be 'read' from the image. I believe that this image is suggestive enough - a scene of domestic violence perhaps? The point being the image presents a perhaps, but a perhaps of what? It's ambiguous enough to become momentarily interesting.
The abstraction here is presented in that the full figure of the model is not shown, and the use of black and white adds a noir sense of drama - the image fits into preconceived dark film genre.