Good job but it could have been done by a medieval debunker.
The argument that this item was produced in the 13th century necessitates belief in technological prowess not otherwise demonstrated in any other artifact handed down from that time.
It is conceivable that the Romans had the talent and science to produce the Shroud of Turin in the 1st century, but again, they knew nothing of reverse positives, etc.
Atheists and Agnostics who simply don't cotton to supernatural origins are forced to admit that the Shroud came from The Great Mothership!/s
Let me guess. You haven't done much study/research on the Shroud...
Perhaps... but not with the wealth of information that is encoded in the Shroud. Too much is information that such a hoaxer could not have known.