Having got the basic shell of a station building I wanted to give a bit of detail and shadow relief to the structure. 

(starting with the picture windows. In order to get the thin balsa strips to bend enough I had to cut against the grain to allow the grain to bend for me) 

Having got the window sills and frames I then turned my attention to the first floor roof which needed a bit of filling. I wanted a lift shaft at the end of the station to give a bit of height. Took some references from the clock tower at Surbiton. 

(with lift tower included) 

(the platform side. I'd put a secondary shadow strip around the platform canopy.)

(a final view with the shadow detailing on the tower windows and canopy highlighting the design intent) 

 I have some balsa sealant on order before I consider painting these to get a good finish. 

Many thanks for reading