I worked a bit with the motto images. But I'm thinking there was a high bounce that just affected the top on some of the devices and not the outer devices.

But the angles of light from different directions on the devices, didn't let me invert the images to show the
Machine Doubling. It looks like you used a single light, but the light was reflecting on some devices on both sides. (If you took some of the images horizontal and some upside down that would make sense of what I see on the images) Two sets of the motto were divided into groups of three. and when I put them together the light was shining on both sides of the devices. But I think I got it figured out.