Last year, Hungarian artist Gergely Dudás, better known as “Dudolf,” created a viral sensation with his drawing of a panda hiding among a group of snowmen. In the past 12 months, he’s delivered some other fun graphic brain teasers—including a cat among owls and a fish hanging out with some octopuses. Now, just in time for the holidays, he’s back at with another winter-themed illustration. There’s a sheep hiding amidst all those Santas above—can you spot it?

Image courtesy of Dudolf via Facebook.