First, I make lineart.
I fiddle around with the pen's default settings. This time it's this:This is for instructional purposes, so I chose very generic lines. How you draw the eyes and the thickness of the lines are dependent on finishing touches.
If you like sharp lines, you can apply "watercolor boundary"to make the lines look crisp.
[Normal]
Size [x1.0 3.0]
Minimum Size [7%]
Density [84]
[Normal Round]
[Drawing Paper] [Texture 28]
-Advanced
Quality [4 (Best)]
Hardness
Min. density [0]
Max. density [67%]
Hard<->Soft [106]
Pressure: [X]Density[X]Size[X]ColorTo Make LineartI often use 0.9mm/2H mechanical pencil with close-up drawings. If you find a favorite setting, it's good to use that.
By the way, "Zaka-zaka" is a rough finishing touch. The name makes no sense, right?