Progress is slow but this isn't a huge issue as I'm fairly comfortable with the amount of work left to do.
I've completed the first castle wall section and I'm quite pleased with the result. There are approximately 480-500 separate tile elements on the wall top so I'm going to be casting it as I don't fancy doing that again no matter how much I enjoyed it the first time round.
The stone wall is laser etched MDF painted in a suitable Japanese castle wall colour (with some help from my wife).
Once another one is complete (after the bank holiday) I'll take some more comprehensive photos to better illustrate the scale and size of the wall.