Find the panda among snowmen!
At least three things play a  role here:


Camouflage: the panda looks like the snowman in shape and coloring. Further, the ears of the panda are the buttons of the snowmen behind, i.e. the panda partly merges with the 'background' snowmen;
Clutter: there are simply many, many snowmen;
Distracters: The colored hats and other attributes are more salient and draw the attention away from the colorless panda.


Saccades are indeed often made to salient features in the visual scene, so that may indeed be one of the factors (cf. point 3).

I am unsure what you mean with more convincing examples and illusions, but this is not really an illusion. Below examples of camouflage (Fig. 1) and cluttered images (Fig. 2).


Fig. 1. Find the leaf-tailed gecko. source: Bored Panda (apt!)


Fig. 2. Find the coffee maker. source: EtchingFitness