A custom brush I have been using for a few years. A custom brush I have been using for a few years.
Customised from a regular watercolor brush. I use it for blending and erasing with transparency a lot; it makes hard and soft edges with minimal effort on low to medium pen pressure for me.

It looks nice both on the same layer or multiple, since it fades well into the other colours without smudge or pressing to force blend them together.

I mark original customised brushes with the names of my OCs.
Customised from a regular watercolor brush. I use it for blending and erasing with transparency a lot; it makes hard and soft edges with minimal effort on low to medium pen pressure for me.

It looks nice both on the same layer or multiple, since it fades well into the other colours without smudge or pressing to force blend them together.

I mark original customised brushes with the names of my OCs.