I have a great news for you!
I got an approval to use the images from Sonic Rail Garden. This Japanese website has tons of images. Especially this site has the images of interior. So you can find the details about the accommodations.
I am upgrading my old posts. I did Overnight express train Akebono, Hamanasu, one of the most popular post Sunrise Seto and Surise Izumo. Please see these page and find the details about the trains. I hope you will be satisfied with this upgrade.
I’m going to upgrade one by one and write new post too. Stick around!