This took me Ages!!! Thank God, it's finally finished
It is based on het Art Nouveau designs of Alphonse Mucha, and most of the textures are just from Google, except for this one; [link]
Hope you like it! If you do, I'll maybe make more in different colors!
ps, the name of such a window is Gothic Rose. It fits the picture, doesn't it? XD
EDIT 2012: I'M SO HONORED!!! This painting has been included in the last Dartzine issue! Here's the link: [link]