This seems a bit too dark. I'm sure that you were going for the darker look but it is almost to the point of not being able to make out what the shape is. I shuter to think what those with uncalibrated monitors are leaving you as comments.
clever, I would like it lit a tad bit more I had to stare at it for a while to see that the sholder is there at all. I like that it is dark and hiding in the shadow but it is a tiny bit too much