This drawing is graphite pencil on bond paper. I probably added the slight blur on the foreground element in 2003, hence the later date on the drawing. I guess it's now a mix between traditional and digital. Normally, I would have drawn the blur.
I think that computers have certainly been a benefit to the industry of animation, but that's not to say that it didn't come without a cost. I don't know that there are many people left who can still draw backgrounds on paper as they did during the golden age of animation.