Till I'm red in the face
by mambaComment by Artifacts:
Overal framing is fine. Pose is a good capture.
I can tell you why the teeth are yellow. It's white balance issues that commonly occur in low light level images like this one. DPC is chucked full of images not corrected for color casts and most of those are low light situations. Low light level images have a tendency to have a yellow and/or red color cast. People that argue against post processing and suggest that what the camera captures is the way it 'really is' are... welllll... wrong. ;)
Looks like there is a red color cast in the "black" portions of the image where there shouldn't be. I suspect that is because you, like most people, used PP to increase the amoung to red in their image to better meet the challenge. You should not have done that and it hurt this composition.
In a somewhat minimalist image like this the technicals have to be rock solid perfect. The focus is soft and it has a redish yellow color cast. Both are killers.
I'm not familiar with the video for "Liar" but will take your word for its connection. I suspect few voters will see that connection either and will vote accordingly. This image looks like it was post processed to make it 'redder' and most voters probably saw that and voted lower.
In the conversion from RAW you can correct the color temperature that will reduce the yellow and/or red color cast you image may have out of camera. In Photoshop's ACR (Adobe Camera Raw) it is the first adjustment on the conversion application's dialog box.
Try to sharpen it more without oversharpening.