The empty space in front of the headshunt has now gone from foam to landscape and been walled and vegetated. I've used a couple of different ground colous at different level to try and suggest stratification. Still not sure about the left hand wall so that isn't stuck down or painted up yet. I'm torn between the modern concrete wall, brick wall or having a go at modelling a wall with a large hole in it (as if someone at some point put some heavy machinery through it) and fencing.

The sheep are however in place along with a suitably modern looking shepherd (none of this twee outfits and crook stuff) plus dog, trying to herd the sheep towards the gate on the other side - and probably not assisted by having a DRS 20 running around its train the other side of the wall.