Nice shots
As a film nerd, I figured I'd give you a few pointers, take em or leave em. The Ilford 3200 is a great film, if you're looking for a finer grain, I've found that almost all 400 speed black and white film pushes well to 1600 (I prefer ultrafine400 because its cheap and hasn't failed me yet). Also, I've shot all of the locations you posted on 400 speed film without a tripod, it's all about finding the light in locations where there is a drastic lighting difference.
What camera are you using?