In the photo of @thespruceofficial, symmetrical balance can be seen in the sliding doors, the frame on the walls, the light fixtures on the back wall, and the two tables. Emphasis is on the bath tub and the window.

 

In the photo posted by @design_interior_homes, balance can be seen by the symmetric design of wood planks on the wall, the arrangement of the pillows on the couch and the stools in front of the couch. Rhythm can be seen in the couch since it seems like it's divided into equal portions. There is also repetition of quadrilaterals as seen on the wall design, the lights and in one of the photos.