IMHO, some of the best railway modelling being done in Japan is by the members of the Keiben Modelling Group, who hold an exhibition in Tokyo every year. The scale is 1/87, but the track used is n scale, to simulate the 762mm narrow gauge.
Video of the latest gathering a couple months back- I especially like the module setup from 1:49 to 4:35.
My absolute favorite from several years back, this has been posted elsewhere in this forum, but it's worth a repost. More along the lines of a "heavy" electric railway than a keiben line, if it wasn't for the 9mm track. Just stunning:
What makes these layouts successful (IMO)? A focus on the railway itself, the rolling stock and the infrastructure, and the immediate scenery. Weathering, but not too over the top to make it "Tooonervillesque" a la Malcolm Furlow. Focusing on the mundane and everyday, but making it realistic, rather than trying to recreate the unusual, improbable, or spectacular.