I just got done with this lesson today. It is painted on an old painters' box that I bought years ago at a sale. Now, it has a new lease on life. This was another lesson with layer upon layer of paint and transparent washes. I wasn't too crazy about the end results at first, but it is growing on me. Now, I have to paint the inside of the box, which is little cubbies for brushes, paint and supplies.
I think the next thing I will work on will be something in watercolor or another mixed media collage. They are such fun to do.