As two example only -
1. “It come down to using depth of field, tone contrast and colour to create a strong figure-ground relationship.”
> Why only are these the only constructs to be used?
> Bigger question: Is a strong figure-ground relationship required?
2. “Is the subject the center of attention, does the viewer's eye go easily to the subject.”
> Does the subject need to be the centre of attention?
> Should the Viewer’s eye go directly and easily to the Subject?
> Would the image’s message be strengthened if the Viewer’s eye lingered a moment, elsewhere?