✣ STATIONARY ✣ ILLUSTRATION ✣ This is great because the printed folded wrap can be done without a die-cut (just angle-cut the sides on a standard cutter). Die-cut anything is budget death. And it's a beautiful innovative design w/o being over the top.
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.