Reconstructed, it looks like this:
Full report at: http://www.bbc.com/news/blogs-news-from-elsewhere-29480874
I'm not sure that any depictions have any significance, outside of the fat thact the artist and their patron, both agreed on a certain image. No tradition exists (to my knowledge) of Jesus looking like this or like that. The buyer and the artist (and in this case, the maker) all had to agree on an image that likely conformed to their own ideas of fashion and appearance.