What a nice challenge!
Here are the RegularRandom Rules:
- choose a subject or scene
- spend just 5 minutes shooting it
- try different angles, different distances, even different lenses, shoot through something, under it, play with the light
- have fun!
- tag with #regularrandom
More responses can be found here: https://musingsofafrequentflyingscientist.com/2017/07/09/five-minutes-with-a-seven-colour-pen-regularrandom/
New / Amsterdam 
Oh how lovely! What a wonderful subject for this challenge. I love your response, thanks so much for joining in.
Thank you for looking at this!
It was my pleasure 😊