There is no any rule for shot composition. But with a good reason, we can break any rule.

Entire screen should be filled with important subject matter. Empty space is wasted space.

Avoid tilted horizontal and vertical lines.

Movement or bright lights in the background are distracting.

Avoid the background by moving the camera or the object, if there is any problem like burning. If not, it will be worse for audience.

Place the eyes of subject one-third down from the top of the frame (In any type of shot).

Avoid big spaces between people or objects. Shoot people in full or three-quarter profile to let viewers see both eyes

By placing objects in foreground, middle ground and background, illusion of depth will be created

To adjust focus, zoom in to full telephoto.