Really like the layout and the rapid progress. Nice use of tubular track, postwar (and similar) trains, and old-school control panel, all in a nice room. You've provided a lot of ideas for how I can revise my current layout.
In the area at the front of the layout (in the 2nd video) where a lower level track is very close to the risers for the upper level, do you have enough room to add a retaining wall? The center area looks like a bit of a reach - do you have really long arms, or a topside creeper? And I really hope those enclosed tunnels work out OK - they're nice, and it looks like you have excellent trackwork, but the universe has a way of focusing on inaccessible areas.
Nice touch having a beverage sitting on the corner.