@ KeyStyx: thanks. I will try and add the buttresses and flying buttresses when I have some time. I made some lancet windows and cloister arches and I will put diagonal versions on my 'to do' list.

The vaulted ceilings may be a bit more troublesome, but I will see what I can do.

I really like your gothic creations/blocks! I am curently building a gothic cathedral and for this i need al your gothic blocks ( gothic windows, flying butresses, pinacles etc.) as a diagonal version. So i want to ask you: can you please create a diagonal version of all your gothic blocks? Thank You!