How to clearly highlight the main body when shooting a promotional film?

Is the promo a photo or a video? I haven't made a promotional film, but I think both videos and photos have something in common and can be used for reference.

I think the ways to highlight the theme are:

1. Focus selection, virtual and real method, highlighting the subject by depth of field effect. Focus on the subject, blur the non-subject, the subject is real, and the others are virtual; You can also add a foreground to block other non-subjects.

2. Use composition to highlight the theme. Generally speaking, when shooting with multiple people or elements, composition can be used to enhance the presence of the subject. For example, the central composition puts the protagonist in the C position, and the trisection composition puts the subject on the trisection line or intersection point.

Personally, I think the compositions that can highlight the theme best are probably these kinds:

Center composition, three-point composition, frame composition, guide line composition, 3. Highlight the theme with colors. Use contrasting colors, complementary colors, etc. To highlight the subject, or the color of the subject is more eye-catching and brighter than other non-subjects. 4. Use contrast to highlight the theme. There are many kinds of contrasts here, such as color contrast, light and shade contrast, size contrast and so on. Let the subject appear in the bright area of the picture, increase the proportion of the subject, etc. Are all good ways to highlight the theme.

5. Use light to highlight the theme. The contrast between light and shade mentioned above is a way to highlight the subject by using light and shadow. In addition, you can also use light to guide, similar to the effect of spotlight, the human eye is always the first to notice the bright place, so it is a good way to highlight the main body in the bright place.

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