There are many examples of balance in this design. In the darker, more colorful card on the right balanced against the lighter more open care on the left as well as some one the more colorful cards, employing elements of balance in the own design.
This one is pretty simple. I think the use of negative space works nicely and there is movement throughout the page. The end of the smaller text at the top aligns with the top of the flower image - it brings your eyes there.