Another interesting shot from you.
If I may make a general suggestion, always check the Levels. In almost every shot you should have the sliders under the data otherwise your image will look milky or hazy. In the case of this image try this and see what you think.
1. Open Levels and move the left slider to under where the data begins, around 25. This will increase the contrast somewhat. Always remember that a good B&W has two things, texture and contrast.
2. Open Unsharp Mask and try these settings: Amount 150, Radius .3, Threshold 0. Toggle the Preview button a couple times and notice how the image pops. The eyes become sparkly, the jewelry and hair distinct, even the brickwork is sharper.
Crop is a bit odd. Remember that the two most expressive parts of a woman's body are her eyes and hands. Expression leads to reaction and that's what makes a good photograph a great photograph... it's not what you put into it as much as what the viewer puts into it. Engage the viewer... make me WANT to know this person.
You have good instincts, you just need to pay more attention to your heart. Photograph with your heart and process with your brain.
Thank you for the suggestion but I was looking for the milky look.