Thanks for the comments everyone.
The 'better No 3' shot wasn't possible: If I'd moved further back I'd have caught a load of distracting elements in the sides & foreground of the shot. I think a tight crop would have made for a very long tall image format. If I'd moved in closer with a wider lens my shadow would have become part of the composition. I guess I could retry the shot with a tripod; take one image with the cast shadows, move the object casting the shadows ( a large trolley which is part of a hoist setup ) & do a second shot then combine the two in PS. ( I pass this scene most days ). Of course I won't do any of this. And it's a long time since I've had any hair...
I've attached a photoshop kludge of the images.
Graeme