What Phil, said, minus the enraged part, but I appreciate Phil's passion.
Melissa, you have so much passion to be a singer I almost hate to say what I'm about to. However, you're looking for comments, so I must be truthful.
You're an okay singer, and that's about it. Did you hire your producer? If so, he keeps you singing in a lower register because that's about the best you can do. Alicia Keys's song, you don't have the power or expertise to really put the soul behind it. That's a powerful song and while you can hit the notes and all, you just don't have the "umph." Even Madonna has more power behind her voice than you do.
What would best suit you is to join a band and sing back up for someone because in comparison with all the competition out there, there's nothing about you which would make me keep coming back to listen to you.
Here's one of my favorite indie singers:
http://www.aprilsmithmusic.com/music/
When I first heard her, I got shivers down my spine. She has a look, her own style and a nice powerful, sultry voice, and an edge. When she came to California, I drove all the way from Orange County to LA in rush hour traffic to see her. When you blow my socks off, that's what I will do for you.
However, if you truly want to sing and none of us can tell you different, you should go back to school and take a class on Theory, get some voice lessons (preferably from someone who does operatic training) that way they teach you how to breathe and utilize your strength and where to probably sing from because right now, you sing primarily from your throat, upper chest. People with power sing from their diaphram. Once you get that, you shouldn't be relying solely on producers and other people to tell you if it's good enough or not, you'll know.
Good luck to you.
Chaeya