Birthday: Geng Yin's years have not passed, but Xin Si's days are ugly.
Score of eight characters and five elements:
Soil 23.2; Gold 27.5; (similarity score: 50.7)
Wood 9.36; Fire14.58; Water13; (Heterogeneity score: 36.94)
Poor: 13.76. Comprehensive rise and fall score: 13.76.
The eight characters are excellent.
Name of candidate:
Zhou Hongjun
The name matches the name of birthdates, and the five elements and five parties are full marks.
Among the Chinese characters suitable for naming, there are hundreds of auspicious name combinations that meet the balance of five elements and five full marks, and all of them can be calculated and selected according to their own wishes. But I don't know your personal preference, so I can only try to choose this for your reference, and open my mind according to the principle that most people like, hoping to help you.