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Sounds fine to me. The prologue and epilogue are literally before and after the story, so it's fine for them to be formatted differently or have a different POV.
Answer
#4: Attribution notice removed
Source: https://writers.stackexchange.com/a/17778 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#3: Attribution notice added
Source: https://writers.stackexchange.com/a/17778 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/