Repetition: Establishes rhythm through the repetitive use of an element with continuity and a flow of rhythm.
The yellow color along with both the pillows and the two tables are the reoccur establishing repetition rhythm.

The pillows and the windows are the repetitive elements of the room.
Radiation: Radiation can give a room a circular, sweeping, rhythmic movement.

The round couch and the carpet give the room the circular feel.

The flooring, the round table, along with the walls and windows add the circular feel.
Gradation: With gradation the size of the same objects in a room changes from small to large, or a color from light to dark, creating a subtle rhythm that draws the eye up and down the gradation line.
The color on the stairs are the gradation on this photo. The different sizes, styles, and shades of yellow.