I like a vox that is upfront.... I think the vox is at the right level. But not the BGV. On the back ground vox, try lowering them. this does not apply to where she echos some lines.
I mix country primarily..... and the thing in country is to have the BGV really low,,,, just enough to know there is harmony but not as loud as the main vox... not even close.
Example:
http://soundclick.com/share.cfm?id=12048139 There are 5 vocal tracks. One lead up front in the spotlight.... 2 leads recorded independently, not cloned and down about -20db for fattening, spread wide in the panning....70% or more.... then there are 2 harmonies also spread wide at 50%... but only down 12db or so..... just so you can hear the harmony but it blends into the background as opposed to being a vocal group of harmonizing singers.
Of course, that's how I did the example. It may or may not be what you are looking for. I would consider it on the harmony parts. On the chorus especially..... you don't want that onslaught of voices from the same singer..... lower them and they are there but not so in your face.
On the intro, yeah I would envelope the vox a few db lower and then bring it up to where you have it when the band kicks into gear. the vox is the right level with the instruments playing.
I would also run some pitch correction on the vocal. there are some places where it could use some tuning. I run pitch correction on every single vocal no matter how good the singer is.... so don't take my suggestion as an insult. It's not. As it stands, it has a live organic nature to it, but to give it that professional polish.... a but of touching up here and there would nail that baby dead on.
nice job on the cover.
Hope that helps.