To whet your appetite and keep your writing fingers limber, take a good look at the photo, or let a prompt settle in your mind. Set a timer for a reasonable amount of time, be that five, fifteen, or thirty minutes. Then start writing.
Write about a character who grew up in a farming community and far from the sea who encounters an octopus for the first time. Or write about any character discovering a person, object, or animal that is unlike anything they’ve ever seen.
Do you generally feel open or resistant to new experiences? Why do you think that is?
Write about your favorite sea creatures and help your readers understand what is special about them.