Put paint tape to cover the place to stencil, put paint filled balloons around canvas, pop with darts, let dry, use stencil to add silhouette.
via Pinterest
This kitty looks somehow angelic with this wonderful backlighting, doesn’t it?
Source: amolife
Some people see the dancer spin clockwise and some counterclockwise. And some can flip between both states. Amazing how the brain works. Use your palm to cover either left or right dancer and let yourself guide by the other one.