This is quite an interesting portrait. First of all the colors seem both cool and warm, but they create a great contrast and go very well together. Also,
I'm very fond of the way this picture is split up in two halves. The blades (or whatever they are) forming a curve and the eye looking to the side, make it easy for the viewer to let their eyes wander over the entire picture instead of focusing on just one point.
I'm only slightly distracted by a few pink-ish spots on the left side of the picture - probably something that was in the background.

Other than that, this is awesome, great lighting, great focus, great colors and a beautiful model!