I have used stamps from three different sets for this: Critters in the Arctic, Joy to the Woods and Deck the Halls. The shell is a sideways Christmas ornament, I think I've got away with it! And the birthday sentiment is of course not from a Christmas set, it's by Avery Elle, and I've stamped in pink and added Glossy Accents which has smudged slightly :(
Like I said, definitely a fun card to make! Thanks for stopping by!