Instead of just finger drawing in an app I’m trying to get a more realistic portrait using a Sketch app and a stylus . I am finding that using the stylus stops the slipping that makes more irregular lines that happens when I try to draw with my finger alone.

The drawing is being made up from the airbrush tool and I’m changing the thickness and opacity depending on the thickness of the lines I want to draw.

It’s again a work in progress so we will see how it turns out.