Harmonious

Harmony in an emotional relationship means that the needs of the two parties in a cycle are met mutually. Both individuals complement each other while having an independent existence.

It is important to note that only partners in a relationship can define the meaning of harmony depending on their unique needs and moral characteristics. Only those have the authority to judge the relationship and consider it as a harmonious companionship. 

In my impression, this artwork’s man and woman wineglasses are completed together. They are satisfied by having each other. Soul mates can feed each other consistently.