The upper image is looking towards Bourtree Brae (seen above first carriage of train) and Cardy House (visible to left of train). The map below marks the direction of the shot. Interestingly, the image features the white-gated Serpentine level crossing (shown in detail in inset) - the means of crossing the railway line for users of the Serpentine path. There was a similar level crossing next to Cardy House and another to the east at Viewforth.
With many thanks to Ian Downie