Painting on windows in Ghent

For Drawing Days, a sort of art festival, I made a painting on a few windows in Ghent. Go here for more information and  to see the work of all the artists! If you want to know more about the artwork I made, read further. 

I didn't know on what kind of windows I had to paint, so I couldn't really prepare myself. When I arrived on the location, which was at De Banier in Ghent, I realized that I had three windows to paint on! For I didn't prepare anything, I decided to remake some paintings I already made on canvas. I began painting 'Forgotten' on the third window, then painted a new idea that came to mind - a woman, naked, with a smiley on her back - on the middle window. 

For there was a mirror inside the room, right across the window, I constantly could see myself painting, which was a bit distracting, haha. 

​Next to the naked woman I repainted my painting called 'shadow of the day' (a girl that is beeing comforted by her own shadow).

I was already painting for like 4 or 5 hours, so when I finally got by the first (left) window, my inspiration kind of let me down. I was tired and didn't really know what to paint next, so I just painted a profile of a head that screams. And then I thought of what the head could be saying, that has something to do with the paintings I made on the other windows. And then I thought of the quote "Art speaks when words are unable to explain" from Mathiole. So I wrote this on the window next to the screaming figure. And to make a whole of everything, I draw a balloon - like the ones we know from comics - around all the paintings. And then it started to rain so I decided I was finished. 

I never painted on windows before but I enjoyed doing this! I liked to paint outside for a change (and before it started to rain it was a very sunny and beautiful day!) and to have some interaction with people passing by. 

Have you ever make a drawing or painting on a window before? And what did you make? 
Any opinions on my artwork are welcome, by the way!

Iris