I was not as fast as I planned to be, but I guess it is ok show the current progress. Mainly I became a digital stonemason who only shaped the stones on the visible side of the wall.

How would that be in medieval times?  “Sire, you might not want to waste your precious time… those stone towers look the same from each side…really”

Well.. here are two more pictures of the tower. The broken wall on the floor will be next and after that the tree will be challenging…

Edit: Ok I did not look at the time when I posted the last images.. I think the speed is pretty ok.