Great views, it is when you see pictures like this you realise how much the River Thames bends round.
The 1st picture I feel is a little empty on the left hand side, I realise that you have gone wide to include Tower Bridge but wonder what a portrait crop of just the Shard and the "Walkie talkie" building would look like?
I think the 2nd is best with the bright roadway leaning into the heart of the scene.