I think you show a lot of potential with these. The focus is good and I like the framing. I like the first one a lot it's a very intimate, compelling shot. KmH is right about the bright spots being a distraction but, for me, they do not completely pull my eye away because the subject fills so much of the frame. The 2nd shot I like the pose and the exposure but the alley background too distracting for my taste. The last one is the weakest, IMO, it looks like you caught him mid conversation and no eye contact.