Great for a 16-year old, and it even looks finished.
Is the corn astro-turf? What kind of sound system did you have? What was the ops concept? 
Yep, the corn is a cheap doormat! The sound was from the Sound Master 210. I wired several speakers below the layout and could flip them on or off depending on where the engine was.
Not much of an ops concept existed: I would just shuttle freight cars back and forth. The layout was 14' long, 12' along one wall and a 2' extension at a right angle.