Yesterday was the "SWING" Show organised by the South Downs 7mm Narrow Gauge Association. It's a nice little show with a good selection of narrow gauge and industrial layouts.
"The Loop" by Giles Favell is a 7mm scale layout depicting the interchange of a slate-carrying NG line with the standard gauge. Although the scenic area is just 4' by 2' it packs a surprising amount of operation and detail, and the scenic work is superb.
Khan by Julian Evison, is an 009 layout set in what is now Nambia, south-west Africa. Based on a might-have been development of a real line it depicts a steep climb up a mountain range, which makes for a distinctive and original model, that is fun and serious at the same time.
Halfway by Ken Jackson features both 0-16.5 and 09 (on the higher level) in a small space.
I could go on - there were lots more excellent layouts and live steam in the garden too - but I've posted pictures of more layouts here. I very enjoyable show, with good trade support too.