Thank you for the comments, everyone, and best wishes for the drawing!
@Holly Loch, I've seen SAVING MR. BANKS, so I know a bit of the story, though I haven't investigated to see how accurate the film is. When she is adamant that Mr. Banks does NOT have a mustache, at first I thought, oh come on, don't be ridiculous, why does that matter? Then I realized that if my book became a movie, I would NOT want Marcus to have a mustache. ;)