There are rules about perception, but not about photography.
It's a lot easier to take pictures if you always have the camera with you.
Light gesture and color of the key compliments of any photograph. Light and color are obvious, but it is just her that is the most important. There is gesture in everything. It's up to you to find a gesture that is most telling.
You must be open to what otherwise may seem to be a detriment to your 'plans'.
Never put lettering in your photos unless you want it read.
I don't see light as something that falls, but as a positive force.