The installations were initially delayed after the group was told each piece required its own planning approval.
The first sculpture to go up, called Lake-Land By The Sea, was designed by Katy Cobb, who was inspired by an old railway poster.
She said: “This is amazing, it goes from having the starfish at home where I’m painting it and all of a sudden it’s a real-life thing that’s happening.
“I kept coming back to the old, early 20th-Century posters for Hornsea. It was just perfect to do something like that.”
King said the trail was a community-funded project, which received a range of donations including £5 in pocket money up to business donations of £2,500 for a starfish.
“To see the amount of people who have come to support the event has made it so special,” she said.