✔

Delicioso y original retrato.

Abrazoos.

Excellent portrait!

I do not understand low technique quality here. Gray contrast. Unretouched face, - smoking is not actual now. 

Fabrizio,

I have to agree with Ruslan as far as the contrast goes. The face is rather muddy looking. However, I do not agree about the smoking part. I taught teens for most of my life and have found that smoking among many teens is back in and accepted as the norm -- even though it is now very expensive and not very healthy. Many teens to not think of long term consequences of most anything. Their death is not high on their list of worries. Things that feel good and that are fun and help them to feel part of a group are very high on the list.

There are a couple of things I think would improve the effectiveness of this image. I do like her expression very much. It may be a bit defiant looking which adds to its appeal to me. 

I would like to see a little more room on the right side so that she has more room in front of her than behind her. This would allow her to be facing into the picture rather than out of it. Placing the tip of her nose in the vertical center of the photograph usually works quite well to give you good left and right compositional balance.

If you are going to crop this tightly on the bottom you should crop at least into her hat on the top, so that you have better top and bottom compositional balance. With this close a shot you should consider having the eyes about a third of the way down from the top of the frame.

If not making eye contact with the camera (viewer), the eyes should follow the line of the nose. It is natural to look where your head is pointing. If looking off to the side you should show what she is looking at or provide a reason that she is not looking where her head is pointing. With this expression I would think you would want her to have very direct eye contact with the camera (viewer). It would add a very dramatic impact to this image.

Although, in some ways it adds to the rather "tough" expression, it would probably be a good idea to remove any imperfections on her face and soften the dark circles under her eyes.

The date and your name are not part of the photograph. It would be quite proper to place them on the mat surrounding the photograph. Of course, you would want the mat large enough so that the letters would be legible.

Nice shot,

Mark

Excellent street shot, use the curves after you cut down highlights, should fix it.