It has been proven that the Church of Reason, aka science has, as usual, only found the conclusions they already knew before they really started the inquiry on the shroud of Turin. It is much older, and has very probably Byzantine roots or at least been in that region.

Of course Jeshua wasn't Arian. (Greek, Indian, Persian, Roman, Celtic, German,...)

This said: Jeshua was depicted as a beardless youth in the early days of the church. Very Roman, in fact. Wasn't it the Roman church after all, and didn't they have to outperform Mithaism? Same reason he had to become a  blond bodybuilder later on...

Whatever appearance you give him, try to convey his message of tolerance (not weakness!) and love (for yourself as much as for others) in it, not what his followers, including Mel Gibson,  made of it. Me, I wouldn't dare to try to depict him. But then, neither could I depict Apollo, or Sedna, or Huizilopochtli, or Siva, or Astarte, or...