I've listened to this cover more times than I can count. Your harp playing is ethereal and transcendental and your voice is sincere and emotive. I really enjoy listening to you.
This is really good for someone who has never really sung before. But as a singer, I would give you a few tips.
1. Practice the notes more, some of them were quite a bit flat.
2. Open the back of your throat more, the notes sounded very contained.
3. Also open your mouth a ton, it is pretty much horizontal in your video.