Question Change Voronoi Shape to Create an Animal Print Type of Pattern and Voronoi Direction

I'm trying to learn shader graph and am trying to recreate an item from a game that has a moving, animal print type of pattern. I created a mesh in Blender, imported it, and have the colors and movement figured out, but I'm struggling with the Voronoi direction and shape. I'm wondering if:

1. Is there a way to vary the Voronoi shape? They're all circular blobs right now, but I'd like them to be similar to an animal print pattern (like a leopard, for example). Is there some way to create and incorporate a texture to achieve this, or something else?

2. Right now, my Voronoi moves around randomly, but I'd like to get the noise to flow in one direction (top to bottom), how can I achieve this? Does it have something to do with the UV mapping in Blender?

Here's what I'm trying to create: