Hi Victor
I'm going to deconstruct your images so that you can perhaps get an idea of what I think would improve them.
#1 Good idea to use the bridge as a frame but here is too much bridge shown which makes the image appear top heavy. Also, the image has no ‘eye hook’, a main point of interest that catches the attention. This weakens the image. Technically well captured and the reflections are nice but imagine the image if there was a
model sailboat in the foreground. That would unify the image beautifully.
#2 The concrete path in the foreground is distracting and has nothing to add to the image. The flower bed works well in the foreground but the building on the right adds a second subject which weakens the overall effect. The image would have been improved if you framed only the Town Hall, and waited for someone interesting walk past. The difficult act in photography is to simplify what is about to be captured.
#3 suffers from the same problem as #2 in that the right hand side of the image is superfluous. That should have been another photograph. The main point of interest is the brighter left hand side so you should have got closer to give us more detail. The empty pews in the foreground are once again, the empty foreground syndrome. Imagine a woman with an old fashioned hat sitting in the first row closest to the camera. That would have added the cherry on the cake.
#4 Is the subject the green bus or the building? The bus is very distracting but if it were to be the main point of interest then you should have got much closer. If not, then you should have waited until it went past. Foreground once again is empty and just wastes pixels. Also the image is distorted and probably would have looked better if the horizon was straight.
If you only take 2 things from my deconstruction they should be:
1…Avoid empty foregrounds. Always strive to put something into them or crop them out of your viewfinder. And,
2…get closer to your subject and simplify. Have 1 main point of interest. Here’s a tip…just before you press the shutter ask yourself, “What is my subject?” If you can’t answer within 2 seconds then maybe you should look again.
Hope this is useful.