It's a pretty nice strarter! Had no idea you were into these characters. I love the buildup towards Ivy coming with her, and the sheer variety in Harley's modes of ruling! The writer captures the tone of voice and the villainesses' chaotic motives really well.

That said, I feel like Ivy's a bit underused. While I guess the base for this Harley is the recent cartoon version, I found myself having trouble picturing some scenes without descriptions of her general attire and appearance. (Doesn't help that Harley's look changes so often.) And to add to that, there aren't many descriptions of the tiny people or their way of life, pre- or post- Harley. I know it'd be clunky to implement these details with so many interactions, though.

So yeah, all that to say: the sequel should keep up with the good pacing and characterization, and also have a long sequence describing the tiny people's proudest cultural monuments, before Queen Ivy wraps them in her vines and stuffs them into Queen Harley's clothes. :P