Good job Tof!
Raxx, it's a pity you can't make your images even more perfect...
Here is my final entry.
Original photo, my final image and the rendered images are attached below.
I rendered the AO pass (the upper-right image) separately to have better control over the amount of ambient occlusion and to cut down the render time.
The other 2 images are depth channel (bottom-left) and specularity pass (bottom-right). I rendered the specularity pass separately to add highlights to all reflective materials, but it is almost invisible in the final image