The link below related to composition.
Gestalt Principles. How psychology influences your design strategy. I've watched a number of videos relating to this topic but most have left me a bit confused. Gestalt theory is often viewed as something for "artists" but the composition of an image is dependent on the person with the camera, the artist. Another way of thinking about composition as you look at the world through the camera.

https://www.youtube.com/watch?v=G-xD1bDoNl4

Cheers Brigitte