At long last I got a chance to finish up and turn the Tudor Rose into a little mounted panel. I got a local framing shop to cut me two pieces of acid free mount board, and mounted it over one of them, with a little padding to bring it to life. Then I covered the other (also with wadding) with some upholstery fabric that happened to be to hand, and overstitched the two boards together.
I covered the overstitching with a ribbon trim left over from when I finally mounted Christus Natus Est (whoo-hoo, some stash busting achieved!) and then, at some length and not without difficulty, attached a fine kumihimo cord around the front edge of the panel to frame it nicely.
It will go in that famed (and so far, still mythological) Winter Decoration Corner that I keep on talking about – when I finally create it.