A new line video today, showcasing the Chiltern Main Line from London Marylebone to Birmingham Snow Hill.
This video debuts some cosmetic upgrades to the map. As well as the new motorways and gapless double tracks, I've altered the standard intercity roads. Furthermore, I've added some farms to beautify the dull land between cities. Here's an example in a screenshot from the video where you can see all of these cosmetic features (this is just west of Beaconsfield):

I got the 'fields' idea from Sarlock, and I've adapted some of his farm graphic concepts as well as creating some of my own. The idea is to add some flavour to the long stretches between stations.
Here's another screenshot, of the busy area around West Hampstead in NW London.

The Midland Mainline heads up past Cricklewood, while the North London Line crisscrosses around the various mainlines and London Underground routes.