Along the right side of the bookmark, a tree grows from bottom to top. It's branches protrude out to the left. On the branches we see creatures peering out at us. From bottom to top: A large caterpillar type creature with four eyes, a furry monkey like creature, a very hairy creature with a broad head with only the round eyes visible (behind him a creature pokes its head out upside down from behind the tree), a bird and a mischievous gremlin sit together, a hairy ball with arms and legs hangs from the topmost branch, and finally a creature with three eyes on stalks sits on the topmost branch.
The most challenging aspect of these bookmarks is the fact I'm trying to draw one of these while also managing the kiddo in a space where at any moment other kids and parents can come by and interrupt things. Managing to make anything is somewhat surprising.