Yeh London is a pain that way, but East of the tower bridge is good to fly from Hermitage Riverside Memorial Garden. Tower Hamlets Council does not permit TOAL from their Parks or Open Spaces, however the Hermitage Riverside Memorial Garden is NOT listed as a Tower Hamlets Park or Open Space. I’m guessing that’s where you took the pictures from.
You still managed to get some cracking shots. It is a shame but due to the risks associated with let’s say less law abiding citizens you can understand why the NFZ are in place !