I found myself faced with an increasingly-rare bit of free time today and decided to tackle the last of the major earthworks at Horseshoe Curve. Essentially I used a hot knife to cut valley into the styrofoam and used plaster-socked paper towels to attain the proper depths. When that was finished, I tacked the hillside in front of Kittanning Point station.
All that remains at the Curve is roads, painting the base coat, turf and foreground trees. Wait, did I say "all?" That's a lot. Who knows when I'll actually get to it but I hope it's not too long.