I think it's a really good song, and your voices are enviable.
To my taste then there's way too much reverb. My advice would be to reduce the reverb significantly!
I sense that the reverb is on the master output, which makes it all gets a little unclear.
I listen to the song through the computer speakers, which may explain why I can not get all the nuances, but especially the vocals derserves to stand much more out in the song.
This song has real potential in my view.