This illusion is really really easy and can be done with any shape(ie your hand,a star, a tree etc.)
Step 1: Materials and Beginning
All you need are a couple different colour markers crayons or pencils,a pencil and an eraser and a piece of paper
Step 2: Outline the Shape You Want in Light Pencil
Step 3: Doing It
Make straight lines across in a he same pattern of colors until you reach the outline then start curving by the outline.
Step 4: Finishing Up
Erase the light pencil mark and hang up your new piece of art!