Having just mentioned my Spriteling, I thought I'd post the progress photos, while I wait for good enough weather and a helper to take a proper photo of the finished shawl.
This was clue 1:
After finishing clue 2:
After clue 3:
After the fourth and final clue, before blocking:
The last picture is probably the truest to colour, the others were taken in all sorts of strange lighting conditions because I didn't want to delay starting the next clue just for the sake of taking photos!