After a long testing finally we have a revolutionary art brushes by Roubloff. There are 4 types of hair in a new AQUA series. My favourite are black (synthetic squirell) and white (super synthetic absorbing a lot of water). Here are some of these new brushes with my sketch book.
Roubloff brushes from AQUA series
Roubloff brushes from AQUA series
Roubloff brushes from AQUA series
Roubloff brushes from AQUA series