Stained glass window

I drove home from the gym tonight wondering what picture I should upload today. When I drove by a house with a unique stained glass window that piqued my interest. It depicts a dragon of some kind. Wonder what that stands for, maybe some kind of Societas Draconistarum Clubhouse...

Forgot to change the ISO mode because I was a bit in a hurry and not sure how the owner of the house would react to me taking pictures, therefor it's a bit grainy.

I don't know, in some way the photo reminds me of the movie "From Hell".