Thanks for all the replies and the kind words ..
Always good to get some recognition...
First let me add i built it together with a friend of mine, she had many great idea's but didn't have the techniques, so she thought of many details you can see.
Building together did create some arguments from time to time, but we managed to compromize most of the times

The cool thing is it would have turned out much more boring without her, she had a more decorative style of building while i had a more rough and sturdy way.
We worked on it for ..hmm... 22 hours together and i finished the last floors in another 5 hours.