re: Who came up with our popular image of Jesus?

Google seems to have a pretty clear idea of what Jesus looked like
https://www.google.co.uk/search?num=10&safe=strict&site=webhp&tbm=isch&source=hp&biw=980&bih=612&q=Jesus&oq=Jesus&gs_l=img.3..35i39k1j0l9.2348.4145.0.5082.7.7.0.0.0.0.417.1033.0j4j4-1.5.0....0...1.1j4.64.img..2.5.1026.0.CvgnwCxkJOc

Hmmm, that’s odd…never saw him as having so many legs.

https://uploads.tapatalk-cdn.com/20170618/70cf7d81853a84652e6d385f8468ecb5.jpg

Lots of early Jesuses on this page, from the Roman catacombs:
not many beards in evidence there.
https://archive.is/20120708110958/http://campus.belmont.edu/honors/CatPix/CatPix.html

Jesus is coming back and boy is he ticked