Lisa & Maggie receiving a special message from Santa Clause.
How lucky of them!
So this is what happens when the two sisters are dressed up as Santa.
Also, the snowman on the background is a reference to my old "Lisa & Maggie's Snowman" drawing. [link]
And the Christmas tree on the right is a reference to my "Merry Christmas" drawing. [link]
Lisa & Maggie/Simpsons are created Matt Groening/20th Century Fox