summicron 50/2 : Stained glass at Pizza Hut?

We went to Pizza hut for my wifes birthday and I took some shots with the Leica and cron 50 combo, , I wanted to try out some different stuff, but didnt get a chance :(

 so here is a generic lightshade bokeh shot, but I do like the fact that the outdoor windows look like stained glass


f2 ISO 320 and 1/1500th of a second ( the camera guestimated this as f1.7)