The face image does look a bit like stylized art rather than a shadowgram of a human of typical Jewish lineage (the bible says He wasn’t handsome in a worldly sense, but neither does it peg Him as looking like an oddball). The face is vertically elongated and has almost straight sides. But again when you’re talking about a one of a kind person like Jesus Christ who can perform metaphysical works at will, all bets are off anyhow. If He wanted to leave an art print instead of a literal likeness, He could.
Then - to try to figure out how the information from the body got onto the shroud they imagined various things. And they figured it might have been a narrow band of energy that scanned the body - just like a photocopier.
So they put a “photocopier” of sorts over the 3D model they had made, scanned it, printed it out, and came back up with a flat representation that looked just like the shroud. It's a pretty interesting show.
There was a gal physicist that is pretty highly regarded as I recall. She talks I think about how the Resurrection was something of a black hole event where time and space all come together or something. Pretty weird to me, but she talked about how much energy would be released in those types of events, etc.