Who is Xiang Xian, probably a calligrapher or painter, who is over 70 years old?

It's Mr. Yang Xiangxian.

Yang Xiangxian is a professor in the Fine Arts Department of Qufu Normal University and a famous contemporary painter. Yang Xiangxian's painting collection was published in 199 1. 1992 was hired as a visiting professor by Scott Moore College in the United States to teach China's flower and bird painting and calligraphy. Good at freehand brushwork of flowers and birds. The composition is rigorous. Pen and ink are concise. A pure heart is beautiful and elegant. Its book style is free, lively and beautiful, which complements the picture and has a charm. Pay great attention to the study of tradition, because predecessors have made great achievements in Chinese painting, especially flower-and-bird painting.