Howdo Chris,
I believe the illustrations are Mr Browns work, he also did the maps in Stan's Cumbria book. I saw some large scale versions of the drawings a few weeks ago and would be proud to hang them on my wall. I suggested to Graeme C that Mr Brown could get possibly develop a nice side line knocking out prints and such like.
Mr Rockrich and I are road testing the book tomorrow around the Fylingdales Moor area.