Below are links to free ink bleed and ink matte resources for filmmakers.
1. Ink Mattes from The Creative Dojo:
I’d use these for water color effects.
2. Ink drops:
There’s a Gumroad download link. All you have to do is type in ‘0’ (Zero) in the price, and it’ll allow you to download.
3. Ink Bleeds
You can download the footage individually. And they’re all free.
If you know of other Free Ink Bleed and Ink Drop and Ink Matte resources, let me know and I’ll update this page.