The scenic treatment of the fiddle yard to improve the view under the bridge is such a no-brainer but so effective!  Also the cameo of the driver watching proceedings down below from the cab of his engine on the bridge during a lull in his own work is so natural - certainly beats the typical 'bus on a bridge' scenario!

I never get tired of looking at your Metcalfe inspired buildings (I say that because the kits always seem to just be the start for your builds - are any of them actually constructed as per instructions?! And I say that as a compliment!) plus using Metcalfe kits/papers throughout brings a unity to the scene. Bravo!