The real beauty in this crazy picture is the attention to detail that the artist, Octavio Ocampo took. Try this: squint your eyes a little and you'll see that the man with the guitar fades away, ad the old man staring into the old woman's eyes really starts to pop out at you.
Perhaps the scariest part of this illusion is that the younger woman has some really mean sideburns! Look out!
Also, keep looking until you find: the young girl, the tequila bottle, and the giant vase! Quite a crazy optical illusion painting!