Optimise your Brush Settings
For me, success always comes from how I use the available tools provided by Photoshop. In Brush Settings, you can create a masterpiece without needing to download any additional brushes.
01 Use a soft mixer brush to blend the colours of the skin. Set as Wet: 5%, Load: 5%, Mix: 10% and Flow: 35%. If you are using a graphics tablet, from Brush Settings, go to Scattering, set Control to Pen Pressure and set Count to 3.
02 Create a new layer, set the Blend Mode to Color Dodge and change the Opacity to 15%. Now use a spatter brush to add highlights by clicking and releasing either with your mouse or a tablet.
Working on the hair
03 Use a flatter brush for hair. Go to Brush Settings, and to Brush Tip Shape to control the shape, thickness, length and the angle of the fine lines of the hair. After that, select Scattering, then set Count to 6 or more and increase the scatter.