I used PowToon to create my artefact which ended up being a short animated video that runs for just over 5 minutes. I usually shy away from PowToon as it can be quite fiddly to use, but I persisted and about 9 hours (argh!) later, I had my final product. It has been uploaded to YouTube and it has been viewed over 150 times with great feedback being provided by the educators who have watched it.
I really enjoyed this assessment task (well, the creation of my digital artefact not necessarily the 1800 word exegesis that went with it!) and am really excited that educators are asking whether they can use it with their staff as a form of professional development!