Heaven cai han cen and cai yi zhen
Cai Han (1647–1686), was a Chinese landscape painter. She was the concubine of the painter Mao Xiang and, with his other concubine Jin Yue, she was commissioned by him with the task of producing paintings as gifts to his guests; they became known as "The Two Painters of the Mao Family".
References
Cai Han Wikipedia(Text) CC BY-SA