The Street Singer

Hi all, i recently shot this on the streets of canterbury, and personally i'm very pleased with it, could anyone here give me some feedback on it?

http://www.deviantart.com/deviation/20283896/

I hesitate to critique so as not to offend but this is how I learnt and keep on learning.

The DoF is good but I think there should be more contrast. As a portrait, IMO, it should show more of the face.

My question to you is: What was the point of the image? What were you attempting to show the viewer.