I think you've just missed the focus on the eyes of #1, and it's a bit too over exposed for my personal liking.
#2 has great impact for B&W, which is how I like to see them, the pose is good, but for me, the border spoils it.
#3 would be a stonker if it wasn't quite so over cooked. I think it's a bit too far on the contrast.
All 3 are good for a first time studio shoot though. Well done.
Steve