It's fairly well done and it is easy to see that wewe have a basic grasp of drawing realism. However, this grasp is basic. Try adding a wider variety of value into your work and try to keep your shading consistent and neat, as it is a bit rough at the moment. Also, pay closer attention to the smaller details. That's something wewe will achieve with practice.
Very nice. wewe have a good eye at drawing what wewe see. I can tell you're observant. The shading is very nice too. My only suggestion is to work on that little speck where the light shines directly on. It may just be me, but it seems slightly off. Nothing too major, though.