I made some sketches in response to your image and poem, using found images and some of my own, I especially got lost in your words, seafoam and tentacles and uneven edges ~~
I started google image surfing and then reading and found some events which I found so interesting, real mythologies, facts that become fictions. Did you know that 5 people died in the Netherlands when a wave of seafoam engulfed them? Utterly terrible I know, I was enamoured by the images though:
https://www.the-sun.com/news/824416/massive-sea-foam-wave-kills-five-surfers/
Also this video of seafoam engulfing a Spanish town:
https://news.sky.com/video/spanish-town-awash-with-sea-foam-after-storm-11914724