A versatile Photoshop oil paint brush with a subtle wet texture. This oil brush has a minimally visible bristle texture that is rich and clearly visible with light pressure but becomes less noticeable at higher pressures when the brush quickly provides a full wet coverage. As well as having a variable line width, this oil brush also has a variable opacity at low stylus pressures. The edges are mostly trim and controlled but have sparsely distributed stray bristles and a slight edge spread.
Have you tried the free Photoshop watercolour brush yet?
Digital Painting done with “Willows Tide” Photoshop oil brush Willows Tide realistic Photoshop oil paint brush