The cloth was woven in the Middle East in the 1st century
It came into contact with a man who was whipped, beaten, had puncture wounds consistent with a crown of thorns on his head, a side wound and puncture wounds on his wrist and legs consistent with Biblical story of the Crucifixion.
It was very unusual to whip a crucifixion victim and the story of Jesus was one of the few recorded instances in the historic record. The reason for this was because it caused a too speedy death with too little suffering
Interestingly, the puncture wounds on his arms go through his wrists and not hands which is contrary to long held assumptions but was consistent with forgotten historical facts on Roman Crucifixion.
The flower pollen was consistent with flowers used in Jewish Burial rites in the 1st Century . Some of the flowers were only present in Israel and the pollen documents an early spring time frame constant with Passover and Easter.
The blood is human blood from a person subjected to great trauma.
The image on the cloth is a 3-D Negative that cannot be duplicated by hand art.
No one can tell how the image was applied to the cloth.
The technique seems to be similar to the also unexplained image of the Virgin Mary given to Juan Diego at for Guadalupe.
A re-sewn section seems to have been used to bind the body and shroud.
Do the probability analysis
There is no "re-sewn section". This is a theory put forward by a textile "expert," Dr. Mechthild Flury-Lemberg, who was responsible for the disastrous 2002 restoration of the Shroud in which the Shroud, under her direction was vacuumed, washed, and stretched! There is a folded over section that has been sewn sometime in antiquity for strengthening when displayed horizontally.
With regard to puncture wounds in wrists, rather than palms:
(1) The hand couldn't support the weight of the body via a single nail, and
(2) as it turns out, IIRC in Koine Greek, the definition of "hand" included the immediate wrist area with it, rather than associating the wrist with the arm (like we do in our culture).
Thus, the Shroud appears to be logically consistent with what would be expected.
Sauron