Hello,
No diagrams, for the layout uses the track from a Tomix starter set and is just an oval.
Roughly three feet long and two feet wide, it has two scenes: a village on one side (3' x 18") and cliffs, a couple of bridges and a couple of tunnels on the other. As we have a 17-month-old child, the layout is fully enclosed with perspex viewing panels to keep little fingers out.
Buildings are a mix of Tomytec plastic and free paper (card) models downloaded from the Internet.
The setting is vaguely reminiscent of Tottori.