Rule Of Third
My example is from a screenshot of the Eiffel Towel.
It can be seen that the screeshot of the website is busy.
However, with the rule of third in mind, the aim is two things, the Eiffel Towel and the 13 years.
Balance
The example of the balance design is from a water skying website where the photo is centered
Also, the content and the label are right underneath the photo making it easy to understand and balance.
Repetition
Target is aiming the towels in this page. It can be seen that there is a repetition of color and different type of towels.
The display is towels; therefore, there is repetition on the website to point out this specific object.