Think you've got sharp eyes? This adorable turtle brain teaser is stumping the internet - can you spot all 3 sneaky ...

Apply random lines, scribbles and splashes. And aim to move your whole arm, perhaps even your whole body, to help you loosen up. Water-reactive crayons or pens, or the best watercolour pencils are ...

There are strong arguments for practising scribble art before you learn to draw, and creative scribble exercises can also ...