Your layout is not a lot different than my layout. I have a long but narrow layout with as much track per sq ft as is possible. The idea of adding scenery is definitely a big pat of the answer as well as getting it off the floor. I would also recommend rearranging the track plan and run a backdrop the length of the layout but place it somewhere in the middle part of the track plan to get away from the perspective of the trains running around in circles. this kind of backdrop makes the trains disappear for a time.. If you want to see that idea in action you can look at the youtube video of my layout. My layout is about 6 ft wide and 30 ft long.
Another thing you might try is locate some other model railroaders in the area and with them just have a ball running trains.
Ray
