The Masterpiece, cont'd

We hauled out our collaborative canvas today, and made some serious progress:

The yellow train tracks were a joint effort. Trevi came up with the idea, and Clara provided the long reach.
Chad and I had a go as well, although my additions are indistinguishable from Trevor's.

The painting isn't finished yet, but I can already tell that it will be hard to decide which way to hang it. This way?

Or this way?
Our wall is going to be so happy.