nice tune eph,
it's a great effort....
i don't hear this as country at all.
it sounds like pure pop arrangements to me.
i agree about some of the vox sections being too loud, they just stand out too far...
when mixing a song like this, where the vox is featured,
i like to find the loudest part of the song, with the loudest vox going on,
make THAT level be correct,
then place a volume envelope, automate the vocal level peak there, and work backwards...
finding the lowest vocal level where it really needs to be louder,
and ride that fader (envelope) with the automation by bringing it up to the pre-determined LOUDEST level...
as you go along, you then will not collectively let the vocals get louder than the LOUDEST mix level you have already established..
this is WAY better than trying to govern a vocal mix with a compressor.
but choosing the BEGINNING starting point of levels is key.