FOCAL POINTS are elements or areas of dominance, just not to the same degree as your one dominant element, which could be defined as your most dominant focal point. Focal points are areas of interest, EMPHASIS or difference within a composition that capture and hold the viewer's attention. - smashingmagazine.com
Emphasis/ Focal Point: A compositional device emphasizing a certain area or object to draw attention to the piece and to encourage closer scrutiny of the work.
Juxtaposition: An act or instance of placing close together or side by side, especially for comparison or contrast.
Ways To Create A Focal Point In A Composition
Emphasis by Contrast: An element distinguished from its surroundings or other elements, by its features, within a composition.
Emphasis by Isolation: Placing an element by itself from the rest of elements within the composition creates emphasis on that single object.
Emphasis by Placement: Using leading lines to draw the viewer’s eye to where you want them to look.
Absence of a Focal Point: Using texture, or pattern to create a feeling or suggest and idea. Artists sometimes choose not to have a focal point emphasizing the whole over the parts.
Degree of Emphasis - Maintaining Unity: The focal point, however strong should remain connected to the whole image.