This is a
very, very, very good song!
The vocals, and harmonies, are so good that they (IMHO) could do with a little *lift* in some way, maybe with some panning.
I would also like to hear some EQ tweaks to bring out the acoustic guitar a bit. I think that would help to carry the vocal along. Have you tried *Classic Compressor by Kjaerhus Audio* on *acoustic* preset? This would bring out that crispness that, to my ears, is missing.
James