Start with the hairline and overall head shape
Sketch the main hair silhouette first
Divide the hair into large clumps or sections
Add the direction of flow from roots to ends
Draw strands following the hair’s natural curve
Vary line thickness for depth and volume
Leave small gaps for highlights
Add shadows under overlapping sections
Refine the edges to match the hairstyle
Erase unnecessary construction lines
Add texture sparingly for a natural look
Shade according to the light source