I'd like to use one of my past two entries, because they are my only digital home studio recordings, Pink Ribbon and Convalescence, as a tool to point out how the recording and mixing could have been improved to get a "real" professional sound. As I've said, I'm determined to learn this stuff as many SF'ers are, so what better place to discuss it than here.
By the way, it doesn't have to be my songs that are used to pick apart, any song that we can listen to and have issue pointed out will do.
I've gotten some great advice from Ken and Desh, to get me to the point I am now. I know there are other good engineers here too, so let's make this an educational thread.

Here is my Convalescence song to get the ball rolling. Please be as brutal as needed.
By the way, this is a recording, mixing and mastering tutorial, so use any genre of music here as a subject.
I'd like to re mix my Convalescence after advice is given to have a "before and after" version to show what proper mixing and mastering can achieve.