Eight characters: Geng Wu is ugly, Ding Wei is not ugly.
Yin and Yang: Yang Yangyang Yin Yang Yang Yin Yin.
Five elements: Golden Fire Earth and Shui Mu Fire Earth.
Sun, moon and sky are water, water is water, water is water, and water is wisdom. You belong to water.
You are right. Date of birth: Geng Wuchou, Ren Yin and Ding Wei.