Progress on the Barn

I've been using the following photograph as a colour guide for the stone work on the barn. It was taken a few years ago when I was in Cornwall and shows the wall opposite the cottage next to the old track bed at Helland Bridge.

My interpretation below...

After my attempts at representing weathered wood on wagons, I felt I could attempt the barn doors. A different combination of colours was used than those applied to the wagons. This time I started off with a light grey base coat then built up the colours by dry brushing dark grey, followed by Lifecolor's Dark Shade and a few strokes of Bestial Brown.

There is still the roof to get to grips with, along with a little more weathering and tidying up of the rendered walls. I'd also like to add some moss to the roof but at the moment not sure how best to do this?