B22 rail and road interchange

I had a lot of fun with this picture. I also kept adding more and more details like a snowball running down a snowy slope. It started with the intersection in the middle with it's two overpasses - loosely based off of places in Korea - with the train station and train line running along the upper portion of the piece. I then added the underconstruction line running along the right side of the road, and the line that cuts under the intersection and overpasses (there's a station burried under all of that.)

This piece stimulated my imagination a lot, and in the following months I revisited the theme of an intersection with two overpasses quite a bit.