Born into a family of painters, his father Ren Chun and elder brother Ren Xiong were both artists. Influenced by his family, Ren Xun attained high artistic mastery in figures, flowers, birds, and landscapes, specializing particularly in fine-line double-contour flower-and-bird painting. Highly celebrated in his time, contemporaries praised: "Ren Fu-chang is adept at painting, renowned across the era." His notable works include "Crossing the Butterfly in the Splendid Sky" and "Magu Offering Longevity".