First of all, the thing is not a shroud, it's essentially a 14th century painting, created as one of a myriad fake relics for money and fame.
Second of all, if you believed it were a real ancient shroud, you would have to explain how the image on it was produced. Corpses don't leave images on shrouds, and even if it were true that everyone in ancient Israel were wrapped in a linen shroud when they died, people certainly didn't paint those shrouds.
Second of all, if you believed it were a real ancient shroud, you would have to explain how the image on it was produced. Corpses don't leave images on shrouds, and even if it were true that everyone in ancient Israel were wrapped in a linen shroud when they died, people certainly didn't paint those shrouds.