For me, a model railway, layout, train set, call it what you will, that has a look, a feel, an atmosphere, that cannot be quantified, using toy or scale elements, is all about how they are used and placed. Also, lighting can completely change a scene, and daylight cannot be beat. Just take any model you have and put it outside against a setting sun. Instantly changes it for the better, tension lock couplings or whatever! If your layout is portable, stick it on the lawn etc., take before and after photos and I bet it looks 100 times better. Just look at my cheapo loco's inside and outside. I know which I would submit to Railway Modeller!