I think it's starting to work. I drew page 3 today, with a whole lot less shading, and I think it's almost right now.
It looks like I'll be able to draw at least one page a day like this, I have another book to finish in parallel, so I'll work on that most of the day and just finish up with a page of Sleepwalkers before I go home.
I also seem to have gone on a date yesterday, which is a new thing for me, and actually it was rather nice. Life is a little strange this week.