geometric abstraction is used here to create a large area of deep space. Quiet minimal art intended to provide an area where the viewer can let their imagination expand and to travel to places far away. Called "Expectations" to allow us to dream of a better future. The simple shapes on the edges are symbols to trigger that sense of infinite space without detracting from the main intent.
How to paint a minimal painting? I do not think there is one way for all to follow, each of us should find their own way (I can help with my personal art tuition) but my postmaking a minimal painting shows my approach.