Absolutely stunning!

That must have taken a considerable time to work on

Brgds - Lasse

Thank you! I've spent about 3 years on just the western end of the Cathedral. I used cardboard models from Taschen verlag and Schreiber-Bogen. I enlarged them to a scale of about 1:100.
I compared these lithographed prints with actual on-line photos and made adjustments where necessary. I also contacted ZDV and asked the staff about structural details. The cardboard models provided a general starying point. Some of the actual details varied greatly however! There are differences between the north and south towers especially on the 3rd floor! North tower had stained glass (duirng war this was blown out) South tower there are no windows on the 3rd floor! There are sound baffles which bounce the sound of the chiming bells back down to street level. Some of the window details are very different as well.

I used basswood for structural support and trim detail. I used Artboard reinforced with basswood for the walls and cardstock for the filigree window trim. Milliput putty was great for forming the statue figures and forming curves where needed. For the windows, I used a rigid polyester... I looked at many photos, including some I took on my own of the cathedtrals windows from the exterior... very little of the colorful stain glass color is apparent when view from the outside. There is a strong greyish cast with hints of color.

I have to finish the remainder of the Cathedral... the long naive, north and south portals and the rounded eastern end... along with all the buttresses, flying buttresses and figures. It will take me at least another 2 years or so. then I'll work on the adjacent structures... They will be easy compared to this!

Congrats on a beautiful job, Bahnhof fan.
I am very impressed with your time commitment to the job.
And you have obviously spent a great deal of time with the details.
It would be wonderful to see some closeup shots of the facade with some H0 scale figures in front to get a sense of the scale.
Also to continue to inspire other modellers to work with cardboard and alternative materials.

Thanks so much for posting this and telling us about your process.
- Mark5