I think that looks excellent, however his right cheekbone isn't quite symetrical, it looks a bit squished. I blame the original, Cara just isn't perfect.
Which one? The one to Carra's right, or our right looking at it? The bright light on the left side of the face has something to do with that anomaly. It's normal. Besides, you're right about the original. I still think there's a little bit of Owen in there.
Still, so long as you can look at that for the very first time and say right away who it is. The feedback's been good on here. It also would have helped if I could have found a better portrait image of him on Google. None exist.