Allusion
A reference to a person, place, thing or idea.
Framing
Highlighting the importance of one visual element by framing it. Also relates to shots (close-up, long shot etc).
Juxtaposition
Two things placed side-by-side to highlight their differences
Monocromaticism
When everything is of the same hue (different shades of the same colour).
Silhouette
A dark shape against a light background.
Vectors/ reading path
The lines our eyes follow when looking at a visual text.