Tattoos are extremely common, they show off aspects of our personality and our stories. Or, if you're a mega-fan of a show or film you can even get that inked too. However, there is an increasing need for original and creative tattoos. This man's unique tattoo looks like his head is collapsing inward.Tattoo artist Matt Pehrson is famous for his intricate geometric designs but this tattoo takes the cake. The ink on his customer's skull makes for quite the optical illusion as it looks like there is a giant hole in his head. In the photo posted on Instagram Pehrson states:We have a lot left to finish on his domeConsidering this tattoo is already a mind-blowing illusion it's hard to believe what the would be left to do. But we'll be eagerly keeping an eye out for this one!