Looking good Alan.
Two figures are enough for the layout (without any railway staff to be seen) as it suggests they are waiting in a bucolic backwater for something to happen. I would suggest giving the figures a mid to light brown wash to deepen the shadows in the creases and skin tones.
I'm waiting for the Ezee line to be draped from the telegraph posts! And being at the 'end of the line' only one pair of insulators need be wired to provide a telephone connection into the station building.
Just to show the effect of the brown wash on the skin tones the photo on the left was taken during the painting of these two 1/48 figures. The guy on the right has had a brown wash applied. The guy on the left with the outstretched arm was only part painted at this stage and as can be seen I apply a dark wash before thinly painting/washing the main colours. The finished figure is on the right after painting and a light brown wash on the skin tones (plus a bit of lippy it appears!).