I'm kind of a fan of Seapony Lyra. ^^
Really, no matter what incarnation of the Lyra character I can think of, I think there seems to be an overlying theme of Lyra being an outsider, for various reasons. And sometimes that reason is that she's a seapony who is getting used to landpony society.
This picture is supposed to be their first meeting. Lyra hasn't had a very fun day, and somehow ended up being violently thrown against a beach by a storm. Hours later she has lost all hope, and then Bonbon appears, quite shocked to find a seapony on the beach since only moments ago she had thought seaponys were just a myth. But being a kind hearted pony, Bonbon's first instinct is to try to save Lyra's life.