Abstract Thursday...Natural filters

I have been playing about with some CD's and lights for the abstract challenge this week, " make and use your own filter."  Fascinating to see the effects of light refraction......SOC and no faffing. Thanks to Ingeborg for hosting this challenge every week :)
Off out later for a catch-up with H......she is always very keen to discuss Brexitt, but what is there left to say, let alone do...we as the public are helpless !
Thanks for looking in and your responses :)