I have a few pieces of art my grandmother brought from China in the 1980s. She and my grandfather were part of a group to canoe the yellow river and fell in love with the amazing country and culture. Any help would be appreciated.
The first one is 師任堂 which corresponds to the art name (號) of a female Korean artist in the 16th century. By identifying the corner, we can see that is a copy of this painting.