I'm really not a Country fan, so I'm not really an authority on the subject, but:
I think the drums are a bit loud and upfront.
I like the way the steel lines fit between the vocal lines and fill things out. Nice touch.
The mix seems really clear. I can hear everything and some good arranging helps it out a lot.
The pitch issues someone else mentioned don't bother me in the least. Makes it so much more authentic and real. In fact, I don't think I would have noticed if someone else hadn't pointed it out.