This is an example of what to do:

Say this is my Tittle and genre:
1. Coraline: Horror

And this is my base image:

This could be my finish:

This an example of what not to do:

Let's say this is my Tittle and genre:
1. Under the Dark: Horror

And this is my base image:

This is what my finish should not be:

It's cute, I'll accept it but you probably won't pass.