Welcome to the forum!
Have a look at this topic, where a similar nomination was rejected again on appeal: Wayspot Appeal denied because it lacks uniqueness or historical and cultural meaning
The rejection would have been for not being “distinct,” as in not being something that truly embodies any of the core criteria of a great place for exercise, exploration, or being social.
I will let others comment on whether an appeal of this one might fare better. It does have a better case to be made with the art display.