Greetings @joseph2! 
Thank you for sharing this banishing spell- I personally love fire spells and always enjoy seeing new ones. You are very kind to share it with the coven! 
Everyone has their own code of ethics that they follow in their practice (which is absolutely fine!), but I personally hesitate to burn someone’s name on a piece of paper- as, if not done with extreme care and mindfulness, could be interpreted as burning the person themselves, which would fall under Black/Baneful Magick for me.
That being said, I also believe that it depends on intent and so long as the intent is clear (burning away their presence in your life as opposed to burning them themselves) then it shouldn’t be an issue 
Don’t mind me rambling, this is a lovely spell and I particularly love the Goddess chant you wrote- it’s beautiful! 
Thanks again so much for sharing and I wish you very blessed spellwork!