Ready? Set? Go!
Here’s an optical illusion that doesn’t take much thinking to understand. See how this person’s hands are lined up like they’re getting ready for a race? It’s because they are. This person merely drew simplistic faces on their knuckles before setting them up for a relay race like at the Olympics.
The tiny lines on the fingernails are what make this an excellent design in our humble opinion. Also, if you look closely, you’ll see that their outfits are painted on and not the actual cloth that the artist put on their hands. What’s really amazing is that the hand model’s forearms aren’t visible in this photograph.