While most people who commute on a train, read a book, listen to music or catch up on some sleep, one man named Seikou Yamaoka is doing something quite different. Using his iPhone, he's making incredible finger painting portraits with the app ArtStudio.
His stunning works look like they've been painted with oil or acrylic, not with just his fingers and his Apple device.
Yamaoka has become an internet sensation for his videos like this one where he's made his own version of the famous masterpiece "Girl With a Pearl Earring" by Dutch artist Johannes Vermeer. The Japanese artist created his art on an iPad mini. Notice how Yamaoka is constantly zooming in and out, capturing an incredible amount of detail.