Here is a reference what M83 looks like:
To my eye, the two plates are identical except for the very center image, and the difference is so slight that it's really hard to see- it's just the lines are skewed a little differently.
Here are swatches on paper, for each image Konad is on the left, Fauxnad on the right:
To me the Fauxnad is a perfect dupe. Even the cat's eyes details are the same, so I am impressed with this plate.