Ball pen by kim jung gi
dynamic sketching peter han texture - Google Search
Kim Jung Gi Mixes Fantasy and Reality in Enthralling Sketches | Hi-Fructose Magazine
50 Cool Moleskine Art Samples That’ll Fuel Your Creativity
Varied weight and hatching techniques to create weight and texture
junk gallery | A litte illustration (more a character design) for...
Jerome Okutho's insight: If you're trying to improve your pen drawing skills, this reference guide contains a list of pen textures you can try and emulate in your drawings.