Shadow Supporters

As this is a journal of what I'm doing from day to day instead of all the wonderful stormy skies and rainbows I've seen and captured today here's a picture of the whole family together at a field hockeyfield in Zundert (Noord-Brabant, The Netherlands), the 3 of us supporting son no 1, who is a field hockey keeper and who was going through his warm-up on this picture. His team won with 7-1 !

I did however make a small set of stormy cloudy skies today on Facebook, see here
If anyone can tell me what phenomenon that patch of rainbow colours in a cloudy sunset sky is I'd be most grateful ! It continued for about 5 minutes.