Get rid of the vignette (or at least tone it down). Crop it a bit tighter, and leave it in colors (increasing the saturation would hurt at all.) Lastly, it usually helps to have the model take a step or two away from the background to get some separation, so it isn't so flat.
And let's try to get the C&C positive, guys. Not everyone can be "masters" such as yourselves.
Good luck!