After setting this project aside for awhile, (the baby isn't even using his crib yet) I was inspired to get more done on it this week:
Mainly, I worked on the upper third of the canvas, using both brushes and my airbrush. I had gotten stuck on what to do for the sky and distance up to it, but I think I know where I'm heading now. The mountains at the moment are too central, I'll probably add more on either side. Next I will add more animals...gotta get it done before the nursery is occupied!
Here's a link to the previous stages.