The light is flat, ie too uniform in all directions, resulting in poor modelling, ie poor rendering of the 3D. The highlight, which prob comes from a window, is too strong relative to this flat light. And that is why you get this almost uniform, uninteresting grey for the whole picture,and with the highlight almost blowing.
A few things can be done to improve the pic via processing:
- Try PS shadow/highlight to reduce the highlight.
- Try using "digital GND" to introduced more variation in the light, eg making the left side darker and thus improving the modelling.
- Try it in colour instead of B&W - without contrasts B&W don't work.
But I think the bigger flaw is the pose itself, the subject looking away too much.
The catchlights in the eyes, eye catching albeit, does make itself makes a picture.