Word meaning "asymmetry" but with positive connotation

What is a word that means "asymmetry" or "asymmetrical" that has a positive connotation?

"Harmony" comes to mind, but seems like a glancing shot. If anything, it indirectly implies an asymmetry.

EDIT: There are many situations where asymmetry is good. When two parties share their competitive advantages in trade, for instance.

Complementary and counterbalanced could possibly be what you're looking for. Some other words for asymmetrical with positive connotations include rococo, fantastic, and extravagant. Unsystematic could also have a positive connotation in certain situations.