David,
What happened with the vocals? They sound like they're recorded in a large room with added reverb.
The songs works well for the target. Melody & lyrics are in the country sweet spot.
Are you singing in your preferred key?
Well, I read that this is out of your stylistic comfort zone but I think you did a good job of a demo for a song someone is very likely to snap up.

Cheers
rayc
"What's so funny about peace, love & understanding?" - N.Lowe