It was fun, and the double path is an interesting idea. I don't remember any intersection though, but I must have not been paying attention. I also wasn't sure if I missed something near Verdigris or not. I knew I was done one path when I got to Vermillion because of the sign and warp and everything, but I don't remember seeing one near Verdigris, did I miss anything?
Another thing too, the room in your picture, it was really weird stepping off the platform onto the platform in the other room, but I don't know if anything can be done about that.