Made this for a 5yr olds b-day. Bottom layer yellow, middle lemon, top chocolate. green shades are cream cheese buttercream frosting....tried to do the viva towel technique but i used the wrong frosting for that. Should have been crusted buttercream. Roads are smashed up graham crackers, rocks are chocolate chip cookie dough bites and sugar babies, walls are mini heath bars!!! All edible except for the guys and vehicles.Got the idea from a couple cakes on here, Thanks for inspiration! Was a hit!