Drawing Round Hole in Lined Paper - Trick Art with Charcoal Pencils - Anamorphic Illusion

How to draw 3D hole with pencil. Trick art on line paper. Amazing optical illusion. • Material used: Paper: A/4, white coloured (Fabriano Elle Erre 220 g.) STABILO Pen 68. Black charcoal pencils (dark, light and medium). Paper cutter scalpel. Kneaded era