This reminds me of making a 'health book' when I was at junior school and we used paint floating on water and laid the cover of our book on it to make a pattern similar to this.
A small and belated September update for 2024, where I am still, after many years' membership, on 365 Project, also now posting elsewhere but wanting...
Great find and capture , Very interresting
It was the sign on a barge/restaurant moored up by the canalside - red/orange/yellow. it surprised me too and I was there!