That first one really makes me look!
I like the angle, I like the motif, and I think it has a lot of atmosphere. It shows that in these narrow alleyways, no matter how bright the sun may be shining, it never quite reaches the ground.
You say, these are "really old"?
Well, then I say you have always known what to look for in your photos!
I also like the third very much, beautiful composition here!