From Kitakami, the trip was south - one trainline, numerous changes. The Tohouku Mainline goes north-south along the Pacific side of Japan from Morioka (the start of the pink line) through Hanamaki, Kitakami, Ichinoseki, Kogota, Sendai, Koriyamia, Kuroiso, Utsunomiya, Akabane, Ueno. It is one of Japanese longer local lines. Much of the Tohoku Honsen line runs very close to the Shinkansen line and in terms of scenery is much less picturesque than the east west lines that go through the mountains.
There are some that are pretty. This stretch of the line, from Rikuchuu Orii to Mizusawa, is not very high on the scenic stretches of Tohoku rail. It does however give an idea of what you would get on the shinkansen lines in the area.