Black and gray marker drawing of two walnut shell halves, one holding a folded kernel and the other hollow, on textured sketchbook paper.

Drawing referenceAbout reference use

An opened walnut

A study of two walnut shell halves, one holding a folded kernel and the other hollow, on textured sketchbook paper. Draw two offset shell ovals with uneven rims.

Food & drink Medium Marker30 min, at your pace

A way into the drawing

Establish the main forms
Draw two offset shell ovals with uneven rims.
Build the structure
Build the folded kernel inside one half and keep the other hollow.
Develop selected details
Add the major shell grooves and dark accents in the kernel creases.

A small thing to tryFollow the shell curvature with the groove directions.