Principles of Design
This picture shows harmony because it uses the bricks as the same componet to bring the different objects together. harmony brings together a composition with similar units. If your composition uses wavy lines and organic shapes you would stay with those types of lines and shapes rather than arbitrarily applying one geometric shape.
This picture shows Emphasis because, with the nuetral and light colors throughout the whole room the painting brights up the room because it uses different colors and draws your eye. Emphasis is is an area that first attracts attention in a composition.
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