What is the connection between Maya Quetzalcoatl and China, the Egyptian snake god?

The only connection is that their bodies have many characteristics of snakes.

Maya Quetzalcoatl?

Among various themes of Mayan art, snake is the most common biological image. The head of a human or monster often emerges from the open Shekou. In this way, the Mayans indicated that creatures originally belonging to "another world" appeared in "this world". The simplified snakehead symbolizes divine power.

Quezal Koyatel, the snake god of ancient Maya, has a more peculiar appearance. This is a feathered snake, which has the evil characteristics of the most gorgeous bird in America-tropical cuckoo, gorgeous feathers and local rattlesnake. It is the "beautiful Quetzalcoatl" of the Toltecs and Aztecs. The powerful cuckoo symbolizes the wind, and the violent rattlesnake symbolizes the whirlwind. The combination of the two constitutes the god of driving clouds. When clouds are pushed, they bring rain, thus enriching the earth, which brings all the benefits.

Nüwa

The Goddess of Creation in China's ancient mythology. Legend has it that she and Fuxi are brother and sister. She married Fuxi and gave birth to human beings. Later, Nu Wa forbade brother and sister to marry, which reflected the progress from consanguineous marriage to extrafamilial marriage in China's primitive times.

It is also said that Nu Wa took loess as a model and created human beings and human society. There is also a legend in "Goddess of mending the sky", that is, a catastrophic disaster happened in nature, the sky collapsed, and raptors and beasts came out to harm the people. Nu Wa smelted five-color stones to fill the sky and slay the beasts.

It is also said that Nu Wa made a musical instrument called Sheng Chun, so people regard Nu Wa as the goddess of music. Custom Yi Tong records that she established a marriage system for human beings, enabling young men and women to intermarry and reproduce, so she is called the goddess of marriage.

There are many legends about Nuwa, which have been passed down to this day and have far-reaching influence. Up to now, Miao and Dong people in Yunnan, China still worship Nuwa as the ancestor of their own nation.