The earliest picture of christ that I found on the internet is one which was painted in @600 ce.  It shows yeshua with a torah or a book of the prophets and there is on the cover a wonderful design which I adapted to stained glass.  It looks like the book is tooled leather, and some of the tooling I put into this pattern as stained glass pieces.  There is a more complicated version of this pattern found HERE.  The pattern is sent as a 36 x 29.9 inch pdf file, but this size can be enlarged even further, and would be recommended to be enlarged further.