Thank you gents!
Unfortunatly I do not have any WIP pics. The Building process took quite a while, my first attempt creating the stonework failed. I used cheap airdrying Clay for Kids, and it all crumbled and broke of. The ballustrade and the roof were not that easy to build too. I considered smashing the whole thing against a wall more than once.
But, in the end, I am quite pleased with my tower. The next thing I would like to make is a Roman Villa rustica.
Jan