Tempted to say asymmetrical symmetry but that is a paradox and yet the concept of symmetry is nowhere to be found in fact, study closely the symmetrical things and ther will more often than not be something visible that says otherwise. The Japanese with their Ikebana amd other schools of flower arrangement prize the well though out balance of proportions, those that nature employs and does so well, then there is always the movement f evolution within the work of art, we enjoy living into the theme, the lib´nes the balance or nearly balanced and finish the movement within ourselves feeling satisfied by having experienced the colours, the sounds, the patterns of life itself while contemplating the arrangement.

Tempted so I shall place this below, excuse me Al ? Brittle light.
Love Ann. (I have done Ikebana, enjoying the so called freestyle more than the norm of three lengths)

Wikepedia:-
Symmetry (from the Greek: "συμμετρεῖν" = to measure together), generally conveys two primary meanings. The first is an imprecise sense of harmonious or aesthetically pleasing proportionality and balance; such that it reflects beauty or perfection. The second meaning is a precise and well-defined concept of balance or "patterned self-similarity" that can be demonstrated or proved according to the rules of a formal system: by geometry, through physics or otherwise.