This is a good start, but when you are working with people, I have found that it is really good to have a running dialogue with them and you can evoke very genuine emotions out of them just by having them talk with you. I know I shoot the best when I am close friends with the person because we can talk and work together very well. The only thing I can find is that these pictures do look pretty "posed" especially the second one, the balled up right hand covers part of his face and pulls a little from the image. This is a great start to shooting people though, so keep it up!