For creating a pluggable database you have to consider how to create the pluggable database, and what are you current CDB settings. In this post i have played with and without OMF and difference file structures inside ONE CDB database.
Mostly pluggable database will be created from the seed database. What is needed when you want the oracle files of the pluggable database on an other file structure storage. What will you use, and when should you use what. After the createing of a pluggable database, you need possible extra steps inside the pluggable database to keep your optimalisize storage environment. Think about the steps that are needed with a single none CDB, those steps would also be needed on a pluggable database by or after the creating steps. When you don't think about this, the change is that you get a spaghetti mixture of files inside your environment.
Lets play;