In a very pinch, I would try this with saliva and my finger! Softer tones along with ink traces develop an exquisite contrast and can make your drawings a bit more lifelike. Observational Skills: Normal sketching improves your capacity to observe and capture the entire world all over you. https://inkdrawingforbeginners61368.ltfblog.com/35751372/the-smart-trick-of-ink-pen-drawing-techniques-that-no-one-is-discussing