So the second sub-challenge has been and I've still not submitted anything other than the challenges. How embarrassing! Still, hopefully in the next week or so I'll be able to do a nice big post, but here's a teaser.
After the varnish nightmare last week, only one knight was salvageable in time to enter it into the Mounted sub. The green come across as rather bright, but some research shows it is entirely possible to dye fabric that green using the techniques, dye and mordants available at the time.