I fell in love with Opus Teutonicum, or “German Work” back when I was active in the SCA.
Generally worked in white on white linen, I love the way the various filling stitches show up against the lightweight ground.
I don’t have permission or any personal photos – while I love the style it’s actually one of the few I’ve never tried to do on my own.
If you’re interested in seeing it, though, I highly recommend the following sites. Good photos, including close-ups and good information about trying it.