I actually like #1....i read somewhere that full-on shots must be 'absolutely' symmetrical - and yours is
perhaps a little more foreground to lead the eye into the steps..?
I'd go with that as my favourite, too. The symmetry is spot on.
Personally, I'd like a little flatter perspective - perhaps if you'd been able to step back a little and use a slightly longer focal length. But it's a small quibble.
Out of the two shots featuring the cathedral tower, I prefer #5.
#4 isn't 'grounded' - the building is cut off just before it reaches the ground. The rest of the framing suggests a 'heaven and earth' interpretation to the image, but we've just lost the earth
I appreciate there may have been other ephemera cluttering the scene at ground level, but it's one of my peccadilloes about shooting buildings. Unless...
#5 does, however, sit nicely on the bottom of the window cill, which mitigates the issue well.
This is all relatively minor criticism, especially for a beginner. If this is your first foray into photography, I look forward to what you produce in the future.
Out of curiosity: do you have a background in graphic arts or some allied trade?