I've added some ink to the background, I think you can see the ink markings.
Considering how much thread work there is on the image, it hasn't puckered much at all, you can see that the edge of the picture has gone in just a little bit.
Now I'm in a bit of a dilemma on how to quilt the border. My gut feeling is to do the contour quilting I do on a lot of my quilts. It adds texture without taking over the picture… I'm not a feather and fan sort of person.