This chart show different shades created with different pencils. The higher the number of the pencil e.g. : 6B the darker the shade.
The Joker BW by piratebutl23 on DeviantArt
The Joker Suicide Squad Tattoo Sheet - Free Printable!
Runes-letters modified from Phoenician alphabet. Runic was often written without spaces between words & where 2 of the same letter sat beside each other only one would be used. It was written both from left to right & right to left. It was mainly used to label items with the owner's name & was considered magical as most people were illiterate & did not understand the concept of symbols representing sounds. This also led to their use in fortune telling.
Tattoo Pain Chart
Pen & Ink Depictions of Trees Sprouting into Animals by Alfred Basha