Not sure if I like the Underground sign cut off or not… although I think having the complete sign there would make the image boring and stagnant.
For something totally different, and because the Underground sign is cut off… I would really cut it off and make a large crop.
Crop from the left so the “U” is not visible… crop from the bottom to the black part just under the red circle… this is in line with the ‘square framing’ of the ‘two bottom corners’ of the clock tower