thanks for the comments guys!
leminilab: rendersettings is TR2. For the lighting I used hidden emitters, manual sun, sky and also relight for adjusting the lighting afterwards. I use it all the time and it's a great feature for that. Here is a cut through the model to explain.
cut2.jpg [ 128.08 KiB | Viewed 854 times ]
I've modelled the loft myself but not specific for that project. I made it a month or two ago just for some tests.
the project was over 2 months.
sandros: The leather was made in 3dsmax with the cloth modifier. I had to make groups of vertices that would stick to the animated wooden mesh when runnig the simulation. It was quite difficult as it's my first project in 3dsmax so I lost a lot of time learning modelling, animation, cloth simulations,...