McGrath I do teach music theory, and at first glance your notation looked fine. I can go over it more carefully if you like and help you with a final draft. The song is beautiful!

One thing I did notice is that Aine and Layne sang it in the key of Ab, you sang it in D, and the lead sheet has it in C. Should the notation be in the same key as the version you submit? Or are the key differences just a product of the computer's recording? Recording is NOT something I have much experience with. But I could help you transpose the notation if you like.

daylia