To the contrary, I feel that the image is highly commendable and honest in a quite current way.
A portrait is not just about the posture and placement of the subject, it should also communicate something of who they are and what they feel. It is great just as it is. Far too often we are presented with images of people hidden behind layers of imposed cliché from the snapper.
Cheers,
Walter
Edit: Having gone to the blog and looked I stick to my rule of thumb that colour is often extraneous information. The Black & White speaks more strongly for me, although the strident colour of the wall and the drips on the pavement do make quite a statement, My question whether that additional statement adds or detracts to Claire.