Here's a breakdown of the design. SPOILERS ABOUND.

The main body is supposed to look like Sunny's head, and the top part is essentially his hairline. The one eye is Sunny's as seen shocked when he was pushed down. The drippyness and little sprigs on the sides are just to make it look more interesting, although I've noticed that they kinda make it look like a weird, jumping fish, which I like.

The hand on the right (badly drawn as it may be) is intended to show Mari desperately reaching out for her brother as he fell.

The bottom hand is the one that shoved him, and the SOMETHING attaches itself to Mari's upper back by this palm.

The next one I think I'll do is probably Basil's.