Two things you need the most to do are the two most common things most singers need when they submit demos here:
1. Brighten up the tone. Big time. Make it bright, until it sounds TOO BRIGHT, and that will be just about right.
2. Support, Support, Support. You need to build strength for your diaphragmatic support mechanism. All of your power for singing needs to be delivered by your diaphragmatic support mechanism.
Good singing to you.