Great image
Do they allow tripods on the Shard?
What was your ISO and shutter speed?
Again terrific shot
Stanley
Much appreciated indeed, Stanley.
Tripods are banned in the Shard, unless you are shooting on a professional permit (I wasn't). So you will need to find a way to manage without one. Putting the camera on the floor, then propping it up at the rear to make it point down is an option (though vibration in the floor is an issue). Or balancing the camera on a bean bag perhaps... Even mini tripods are not allowed, though I used one before anyone noticed!
The St Paul's shot was ISO 100, blending between one frame lasting 6 seconds and one lasting 1.6 seconds.
The Tower Bridge shot was ISO 100, blending between one frame lasting 20 seconds and one lasting 2.5 seconds.
Plenty of attempts were required before getting one not spoiled by vibration in the floor.
The biggest problem is reflections off the windows of course, since there is nowhere you can shoot without a window.