I think those are the most recent works from Atela, so it is normal that you find them similar as the artist is the same from the original game :).
oh, now I get it.
Well, I've looked it over and there are quite a few ideas for the game and the beach promotion. you can take a look and add a few. as far as I remember, there's an octopus, a clam, fish, dolphins, and maybe two or three others that I can't remember(.
Anyway, there are plenty of ideas for the beach.