Spectrum and shadows

The sun is shining through a dangly doo-dah I have hanging in my window, and creating a few little spectrums/spectra onto the chimney breast.
It's also throwing shadows from the 200 year old spun window glass.
I love the texture of old glass!
(I'm noticing these things, because I am in front of the current 6 Nations match, pinned underneath a cat).