this impressive system to keep the river water level under control (Thames-London) Critisize, be constructive or not, suggest want you would have done if u were on the spot.. thanks!
I like your choice of B&W for this composition. The clouds are nice, but you don't mention using a polarizer. That might add a little more "drama" to the image. Still, I like it very much.
Of the 2 images I prefer this one. Both are difficult to understand, but I don't think that is your fault. I think the design and construction of these "things" make it difficult to grasp.