I needed exactly the surface of two of those boards for part of my wall, and I wanted to put the boards one next to another.
Unfortunately, on the first look it seems to be the same, but once on the wall and under the light, You can clearly see the difference in the foam color shade.
I also tried to rotate it every possible way, but the difference is always there.
It looks really ugly, but what can I do now? Just to rip it off the wall and buy one board with bigger dimensions...shame.