I have to chime in here and take exception to a common assumption in many of the responses: the idea that magazines are only interested in publishing large layouts. There is one very logical reason that you don't often see small layouts featured on their pages--a magazine can't publish what it doesn't have. I know Allen Miller will back me up on this.
In addition, any layout, regardless of size, must be visually appealing or offer something unique. This is hard to do on a 4 x8, especially one that has more than one loop of track on a flat green tabletop. Add a few operating accessories and there is very little space for much else. Another factor is the enviroment. A small layout in the corner of a cinder block wall basement, in a spare room with a visible widow in the background, or in a cluttered space, is a challenge to even a professional photographer. Ask me how I know.
So, the onus is on you. If you want to see more small layouts, you need to submit your layout to see if there is any interest. Remember, you don't have to be a professional photographer but your photos do need to be lit well and be technically usable in terms of file size. Any editor will gladly help you with composition.
