I did manage to finish off Dagon's base today.
I'm pretty happy with the result, except I probably could have highlighted the tube coral more.
If I had time after I finished the base, my plan was to start on Dagon's main body with the airbrush. I did have time, but really didn't feel like getting in to the airbrush. Instead, I worked on shading the back of the demon. It's the last skin-area I have for him.
I don't like working with the airbrush in the evenings because I have much more limited time (and I'm usually more tired). So probably what I will do this week is work on finishing him. Another possibility is maybe working on one of the Amazons...but he's awfully close to the 'power through until he's done' point.