You have the right feel for the shooting.
Good control over the camera in general, and obviously a people shooter.
Now my C&C is gonna be a bit harsh, but learn and you will do very very well.
The issues I see first off are: Tonealaty. A bit more black "punch" and deeper color saturation is needed in the shots. Check you exposure. (This is common with vertually everyone.)
What you want to do is shoot for (expose for) the subject, whereas you have some (very minor) wash out in the background. Again, this is common with new photographers, and one I still struggle with. (Shooting for over 35 years.)
The offset of subject is ok to a point, but pay attention to the rules of thirds
Basic Photography. The Rule of Thirds.
The black and white is ok, but punch up the contrast just a bit. Again, toneality control is key.
Not knowing the model, I cant direct you to how to adjust that in camera.
Big thing, is keep shooting and have lots of fun. Try diff. angles, and diff. exposures. Being digital, you can do that all day long and not worry about cost.
In time start working on higher end glass as well. But with the lower end cameras, the bodies are open to flexation from the weight of the lens.
Overall, not a bad start at all, and keep up the good work.