The color is nice and I also like the varying little images seen through the openings that show little scenes beyond.
But this image is missing something, perhaps lost in the scanning.
IMO, this image is really hurt by the fact that the wall is OOF and the color goes from pale pink to a really washed-out color; the wall takes up a large part of the image and to get a good resulting image, the wall needs to be at least somewhat in focus. This implies a smaller aperture, a greater DOF and perhaps the use of a tripod.
Also, this is a 'wall', which implies verticality - there are no true verticals or horizontals in the picture.