Bill, I like the first three. Don't think much of #4. If the two guys camera left were interacting with the vendor, camera right, it might be something. As it is there's not enough of the building to make it interesting, like #3, and it's just some people on a street. A tourist shot.
#3, is a damn good street shot. The woman's presence is mysterious (ambiguity!). The massive cathedral behind her overwhelms her, and the way her legs are splayed makes her seem vulnerable; even pathetic. You can't look at this picture without questions popping up in your mind. Why is she there? Why is she hunkered down in front of the cathedral? What's she doing with her hands? Is she okay? . . .
#2 is interesting architectural stuff, but the people on the street are swallowed up and insignificant. Another tourist shot, but a good one because of the architecture.
#1 needs a hobo and a cat to become a street shot. If you're familiar with Cartier-Bresson's work you'll understand my reference. I'm sure Isaac will pick up on it right away.
You're taking an interesting approach. Most street shooters move in close. It's hard to do until you get used to it, but it can pay off big time. I'm sure Seamus would agree. You're doing some interesting stuff. It's a lot more scary than flowers or birds or landscape or still life, but it's what the small camera really is for.
I don't think most people starting to do street realize how few of their shots are going to be worth keeping. There's no way around it. Even with the camera in your hand, zone-focussed for the area you know you're going to work in, far too often when you raise the camera, the scene in front of you dissolves before you can trip the shutter. Then there are just plain bloopers where you thought you had something but it turns out to be crap. People look at the work of a street shooter and think that the guy just walks down the street shooting one keeper after another. If there's one exposure in a thousand you'd be willing to hang your reputation on, you're doing really well.
Keep shooting.