O-scale model Substation for electric locomotives, Skykomish, WA. 1930

Here are some images of the concrete substation that I am building right now in O-scale for Hikel Layouts and Trains.
The model is being built from photographs, the original building has long been demolished. The original stood near Skykomish, Wa. and was built somewhere around 1930. I am foreshortening the proportions of the model so that it can be fit into a unique area on the model railroad. I have lots of details to add but I feel anything will be easy after getting these walls finalized. These took longer than I had anticipated, but a least, the end result is better attention to realism.