Here is Gumroad link to download free set of watercolor brushes. Soon I will show some examples how they work.
Krita Cloud Brushes I - Paolo Puggioni - Concept Art & Illustration Paolo Puggioni – Concept Art & Illustration
Open source digital painting with Krita
Jackpack (+Realwater) Legacy Brushes - Resources - Krita Artists
Set of Watercolor Brushes - Brushes and Bundles - Krita Artists
Loading and Saving Brushes — Krita Manual 5.2.0 documentation
Set of Watercolor Brushes - Brushes and Bundles - Krita Artists
Open source digital painting with Krita
Set of Watercolor Brushes - Brushes and Bundles - Krita Artists
List of 20 Free Brush Packs for Krita
KRITA 4.4.3 INTRO TO BRUSHES - Downloading & Installing a new brush bundle