However, this
canopy is on the same platform as the photographer, while the platform
the couple are sitting on is canopyless. At first I thought the plain
white area above the girder has clearly (and very crudely) been blanked
out in an image editor, but it could just be a very over-exposed outer
face of the same canopy (in which case the photographer is one platform
further back than I originally thought).

In view of the claim that the photo was a composite, I'm a bit surprised
that nobody in this thread has yet actually gone to Wimbledon and attempted
to reproduce the viewpoint. I'd do it myself, but for me it's a bit far...
--
Mark Brader There are people on that train!
Toronto Sure, they're Canadians, but they're still people!
-- Paul Gross, "Due South"