I urgently need an expert to translate the letter to the visa officer.

I think your letter is too verbose, and this New Year is China's New Year, which has nothing to do with Americans. Besides, your narrative is too China. Foreigners only need simple and easy-to-understand expressions. There is no need to explain where this photo was taken. A letter that is too long is not good. Your letter said that you wanted to be reunited with your mother. Now you have no immediate family in China. Please request permission to attach photos. Ok. Good luck.