Some work in progress images for you. The mountain has been finally turned into building blocks, and the middle ring wall of south-western corner has been built. Also some progress with the main entrance has been made. Let the images speak for themselves.
The mountain has been replaced with a middle ring wall tower and wall.

A happy cow. (note that this image is taken from top of mountain which is going to be demolished at some point)

The middle ring rises itself so high, that it covers the land below it.

The main entrance seen from opposite shore. On left can be seen the other mountain to be turned into building blocks. The wall goes through the mountain.

Main entrance without the roof and finished walls.

Over the sea it is.