These vehicle paper models are Chizu Express Trains, created by Chizukyu. The Chizu Express Company is a Japanese third-sector semi-public railway that connects Hyōgo, Okayama and Tottori prefectures. The Chizu Line is not electrified, but is a high-grade railroad, and runs a total of 56.1 kilometers. The limited expresses Super Hakuto and Super Inaba run on this line.
You can download these paper trains here: Chizu Express Trains Free Vehicle Paper Models Download