Cathedral Wall Backdrop, main structure

Foamboard may be one of the easiest terrain building materials, but it still certainly takes some time to learn to make anything out of it. I have been building this terrain piece occasionally, but the progress has been fairly slow. Fortunately, I have enough material and it's cheap enough to waste some of it on some occasional mistakes.

After the previous post, I tried to make the previous flying buttresses a little thicker, but just couldn't get them to look right. Eventually, I decided they just needed to be remade. The new ones are somewhat more elaborate, constructed in two pieces each.
I also added a windowsill and some pieces of wood to frame the window.

 The windowsill came from GW's Cities of Death Floor Pack, which I intend to use some more on this project, too. The flying buttresses are still uneven, as can be seen on the right.

After fixing a few minor issues, the next step will be to work on the decoration. I have some plans regarding that, but I'll leave that information to myself for now.