I think you hit the notes quite well, but I can hear that there's this deeper sound just waiting to burst out and I feel like you're kind of holding it back. Maybe practice to sing a little bit louder and try to get rid of all the breathiness. Then I think your voice would sound much richer... you can always add breathiness to this pure sound where necessary, but try to open up to the sound more first.
Maybe try to imitate an opera singer for a while, overdo it even (like open your mouth more than feels intuitively right, make faces that match the emotion of the phrase you're singing etc.). The goal is to sing something like a satire of an opera. After you've done that for a while, try to add some of the qualities of that voice into your singing voice to make it sound less like speaking the notes and more like really singing them with power.
You have great pitch, all that is lacking is a little more resonance and power so you can deliver a more dynamic performance.
