I just found these amazing artworks of the Toran and Dunan Castle headquarters in Suikoden 1 & 2. They're really cute and have a lot of cool details, so please check them out. Flik and Odessa together at the top in Toran Castle is just... (if you've played Suikoden 1, you know).
I attached some previews of the art, but all the original images (also individual floors) can be found here:
https://www.pixiv.net/en/artworks/54054581
https://www.pixiv.net/en/artworks/72159699
It's fun to compare them with my maps:
https://vgmaps.com/Atlas/PSX/Suikoden-ToranCastle(Lv4).png
https://vgmaps.com/Atlas/PSX/SuikodenII-Headquarters(Lv4).png