Japanese Painting, Framed, Set of 3, Landscape, Flower, "Shunzan" Inscribed, Silk Screen?

Please note that due to shipping costs, we may not be able to offer discounts on this item.

This is a Japanese-style painting of unknown authorship.
The painting in the first image is signed Shunzan in the lower right corner.
There are two other paintings of the same size on the back of the frame, allowing you to swap them out and display your preferred artwork.
Two of the paintings depict buildings and nature, and one depicts cosmos and white clover (?).
Although difficult to see in the images, all paintings feature subtle gold leaf that sparkles.
The overall dimensions of the frame are 41 x 44 x 4.5 cm, the visible opening is 40.5 x 38 cm, and the mat opening is approximately 26 x 23 cm.
No accessories such as a box are included.

This item was found while clearing out my parents' home.
The three paintings are mounted on the cover paper of fusuma (sliding door) paper.
There is no significant damage, but the approximate age is unknown.
The frame has minor dirt and scratches.
Please examine the images carefully before purchasing.