After having exhausted my go-to water idea with reflets dans l'eau, today's prompt proved difficult, as I wasn't sure for a time where I was going with this. What did prove especially difficult in the end was not making mistakes when playing all these parts on the keyboard. But I persevered -- and I'm now pleased to share this with you all, because I'm actually proud of it.
While doing this, I imagined the playful movement of fish in a pond or in a river. I imagined some fish splashing out of the water and back in again, and I imagine other fish circling each other. I had a very clear visual image of the movement, and this helped with the orchestration.