So it was out with the paint rollers to create a graduated sky, from darker at the top to a whiter at the bottom. It was recommended to put the whole lot in a line to get consistency ( Mr Bambrick's book ). I used two rollers , one for each mix. What I'm trying to get is a hazy summer sky. It is a bit washed out in these photos, but there are actually vague areas of white in the sky. I'm no artist though!
I think I will make up a composite background, but I've not been able to find views of many backs of 1930s council houses and the ones in Brayton Crescent are quite individual. However, for proof of concept I've trawled the internet and come up with this Photoshopped test piece between the two railway buildings. In the 60s of course they would all have had those metal window frames - I remember them well! There is a fence all the way along the back of the station ( represented by a redundant venetian blind slat ) , so that make makes a convenient break between the layout and the back scene. The image is also reduced to force the perspective. The waiting room is approximately at platform level. I want quite a low viewing angle - more a natural viewpoint, than having the background towering over the layout.
There will be a couple of council houses down on the left and the ground level will gradually rise up to that notch in the backscene.