Zhang Xuan, "Lady of Guo Spring Outing"on Silk

I know what this is depicting, Zhang Xuan, "Lady of Guo Spring Outing" that it is watercolor on silk, and that it is very large, had to lay it over a queen size bed to get a picture. It seems very finely done. There is a raised ridge around the edge. I would love to know what the writing says if anyone can translate it. I found this in a second hand shop and would appreciate any insights anyone might share about what the box indicates. I don't have a clue how to display it and it looks like it has never been out of the box so I don't want it to get damaged. There is writing and red seal marks on the painting as well. Hope you enjoy seeing it. I think it is stunning.