Dead bodies and blood were easily obtainable in the 12th/13th centuries, so even if your assertion is true, that tells you nothing about the age of the cloth.1. The image on the shroud is an imprint of a dead body.
--- The shroud is not a painting.
--- The stains are real blood.
People in the 12th/13th century could read the accounts in the gospels, so even if this assertion is true, that tells you nothing about the age of the cloth.2. The details are consistent with scourging and crucifixion.
People in the 12th/13th century could read the accounts in the gospels, so even if this assertion is true, that tells you nothing about the age of the cloth.3. The stains on the shroud depict the injuries that the Gospels report.
Any reproduction would have to be identical to the shroud as it appeared at the time it was made. Do you know what it looked like at the time it was made, in order to assert this? Even if your assertion is correct, that tells you nothing about the age of the cloth.4. Even today, no scientist or artist can fully replicate the shroud.
Something being unique does not in itself tell you anything about its age, so this assertion, even if true tells you nothing about the age of the cloth.5. There is nothing like it in all of ancient art.
In what way? Nothing you have presented has cast any doubt on the carbon dating process or the results.6. The carbon dating (of the 14th century) is suspect.
The Sudarium of Oviedo has been carbon-dated to approx 700CE, which precludes it from being 2000 year old in any case. Even if your assertion of 'important clues' is correct, you haven't posted any of these clues here, so until you do we cannot judge whether this assertion has any value.7. The documented history of the shroud can be traced back with certainty only to the mid-14th century. However, several important clues show that the shroud probably existed long before that time.
--- The Sudarium of Oviedo is a perfect match (except involving whole blood rather than blood exudate) with the face portion of the Shroud, and the Sudarium has a documented history going back to at least700 AD.
Geniuses exist at all times and in all walks of life, so this assertion, even if true, tells you nothing about the age of the cloth.8. If it was done by an artist, the artist would have been a genius beyond Da Vinci.
Jabba, none of these 'intermediate conclusions' should lead anyone to think that the cloth is 2000 years old. None of them either confirms or denies any particular date.
You haven't suggested anything to support your idea of the carbon dating being suspect, and even if you ever do, the opposite of "12th/13th century" is not "1st century".