Hey @spaceginger. So I had this post open for about a week, and I wanted to make a design. I finally had some time and came up with something, hopefully it's not too late yet. I might make a post for it later, but for now I am just posting the images in here.
Variant 1 - Colour blobs

Variant 1 - Colour Palette

Variant 1 - Teal Blobs and brush lines

I can also mix and match these if you like some element more than others. Wish I could spend more time on it, but this is what I came up with in my current limited time. :)