Composition is the art of arranging the objects in the shot with purpose. The subject of the photo should be perceived intuitively, with a guided navigation for the viewers eyes through the important details.
The feeling of distant and separation. A simple trick: show the ground. This shows how far the subject is from the photographer.
Adding objects to the foreground to generate an “inside frame” for the subject, replacing dead space. This is a matter of style and personal choice.
Bring the viewer into an adventure with you. Examples: using vantage point to portray the path ahead; using perspective to show how big the world is; using surrounding light to silhouette and hide the person into anonymity;
Keeping the shutter open longer blurs moving objects and absorbs more light. Interesting for smoothing water on shooting in the dark. Can be done by converting a Live Photo!
Shooting extreme close ups. Ideally you have a special lens for it, but today’s versatile lens can do a pretty good job with regular focus control.
It usually looks far too stretched and weird. A good tip: you don’t have to go all the way. A third of the maximum range can look pretty good.