Cadanse D, and added them into the document for the book. Above is her gorgeous illustration for the spell spying sigil.
Having included all this new artwork, I exported a PDF of the book and scanned through it to get an overview of how many illustrations there are now, and how well distributed they are through the text. I was delighted to find that no more than two pages pass now without an illustration! And I'm still expecting ten or so more illustrations from another artist. It's going to be a very good looking book!