The tools for digital watercolor are included 11 brushes and 2 textures.
My watercolor set. I have made it because I needed watercolor style brushes for my personal works.
This brushes have a textures but for the best result I always use the paper textures layers at the top in my layers panel.
EDIT
I added color change, change saturation, dodge and burn brushes.
Painting brushes:














Watercolor_edge
Watercolor_soft_edge
Watercolor_edge_cover
Watercolor_cover
Strong_wet_color
Watercolor_transparent
Watercolor_edge_detail
Blending brushes:
More_water_edge
Water_more_soft_edge
For_blending_edge
Water_blend
New brushes: change color, change saturation, dodge and burn.

Textures paper:
I use it with layer effect:

The illustration that I have made this brushes:

Painting
Blending
Textures