In addition to the eerily similar likeness of his lips and complexion to that of The Joker [see image, below], the demon shares a pair of dark eyes, sunk deep into sockets as black as pitch:
|The Miniature-Joker Demon (circled)||The same demon (shown left), baring his teeth|
Unlike The Joker, however, this demon stands only three feet high (or so).
This is not the first demon to appear in this location, which is just in front of a closet in the living room of the apartment in which I am staying. In fact, demons can be seen congregating here nearly always.
Several months ago, I posted a video showing a green, not-quite-hobgoblin Rabbinic Hobgoblin demon in the same location.