Cameron Diaz

Let me just say first that this is my very first vector portrait! This is actually the very first time using vectors in photoshop and if you look in my gallery you can see improvement in my vectors..
Here's the reference photo: [link]

I was told that this portrait doesn't at all look like miss Cameron Diaz when I just made it. But I can see now what people mean. I also used a reference pic which doesn't look a lot like her.. hmm.