What did you use as a "source of inspiration"?
Some picture?
Imagination :D
No but seriously. I used a couple of pictures of famous cathedrals for inspiration. Most noticably are the cathedrals in Cologne, Chartres and Paris. Some elements are more inspired by pictures than others. For example, the transept was strongly inspired by the one in Chartres, while the entrance on the west facade was inspired by the one in Cologne. The towers, walls and east end are purely imaginal.
Can you post a close-up of the circular window?
Which one? There are 3 of them.