Curves and angles: There’s a reason why fruit and round bottoms keep making it into masterpieces. The eye will instinctively follow a curve.
In geometrics or architectural subjects, a pointed end or the connection to a new line is a visual pleasure point.
In abstraction, a horizon-like line can provide a tether to an otherwise cacophonous symphony of form.
Colour: The mother of all languages, colour is the first signal of where to look, where to linger and where to get lost.
Give the eye a place to rest and stay awhile...
A flat, or even a super-flat, offers a void-like space in which to get lost in the materiality of pigment.
Looking at this image there is a curve and some lines;