Constancy is the idea that we see a particular object in the size, color, shape, feel, and other senses that we expect. We always see humans, for instance, in the same way. We expect that they will be 6 foot tall or less, and see multiple humans in that context. If we introduce comparative objects that we recognize the size of, it will alter our perception of scale.
In this illustration, I decided to alter the relative size of human silhouettes to expand the depth of the piece.
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