The rule of thirds does not say to leave a third of your picture blank. Otherwise a pretty cool portrait, although the model is a little self-conscious. But I might not think that with a better composition. 6
Subject well focused and focal point: 2
Lighting: 1 (looks a bit blown out on face)
Composition: 2
Background: 1
First impression/ Wow factor: 1
Artistic "override": +1
Total: 8