All photoed by me, in 2015, apart from the last one, which was photoed by me earlier this year:
They are: the statue of Mercury on top of Telephone House (also featured in this photo); the Big Olympic Thing; Pavlova; and the Optic Cloak.
I have many photos in the archives of all of these four. All of the above photos show context, as well as the Thing itself. I love these sculptures for what they are, but also for what they do for their surroundings.
There are many, many other sculptures and statues in London that I like a lot, but those four are my current front runners.