Heya kksumu,
Thank you! I am not sure if you can use 32x32 size tiles in MZ without some sort of third party plugin. If the rest of the content you are going to work with is built for 48x48 sized tiles, I would stick with Rural Japan. If you've figured out how to use 32x32 sized tiles in MZ, and you're only using 32x32 sized tiles for your entire project, you could go with Temples and Shrines.