That isn't a cloud, it's a monster conjured up by Harry Potter to go get those bad things, what are they called now?? hmmm the word escapes me..
Maybe one of our Potter experts can help on that one.

It's face down, as if swimming through the air. The two small breaks on the left are it's eyes, and the little tendril forming on the bottom, near the center, is a small arm waving "Hello down therrrrrrrre."
Nice attention to detail, LW. Maybe if I would do that, I could think up something.