For the abstract-17 challenge. Does it not look like the content of a box of sapphires and diamonds ? This is actually the sun playing on sea foam that was deposited on sand and pebbles after the tide receded. Natural colours.
I never would have guessed what this really was. I love the colors--especially this month as so much of the site is in black and white. As a bonus, we get a repeating image of the photographer.