Some Anatomical Errors
The first error I will show is one that was noticed nearly the same time as the lack of the top of his head. The length of the arms and hands.
The red lines are the arms bent, the green line is the length of the opened hand. The yellow lines are if the arms and hands were resting straight by his sides.
The first thing I noticed was that his arms were bent at a pretty sharp angle, yet his hands were placed over his genital region. If you try to put your arms at that sharp of an angle while you are standing, you will find that your hands will rest on or above your belly button. Likewise if you place your hands over your groin, you will notice your arms are straight.
Now look at the yellow lines, have you ever seen a human with fingertips below their knees? I think not! The only way to have that is to be in a sitting position, but if this body was shrouded in a sitting position, which would have had the shroud not touching the front of the body from the knees to the forehead, this eliminating any detail from the imprint. So this man's legs were not very bent.
Error Number Two is the length of the man's nose and fingers. The length of the bridge of your nose is equal to the length of your index finger, go ahead and try it. The index finger, when your nose is resting in your middle finger knuckle (when your hand is in a "we're number one" position), rest on your forehead even with your eyebrows, once again, go ahead and try. As you can see by this man's index finger (the dark blue line) it would have extended up past the top of his head, which means it dwarves his nose (light blue line).