Here Nate Bauer demonstrates how one not only uses the art history brush but also how one is able to use the tool to create an Impressionist styled image. Feel free to ask any questions on either http://questional.com or in the comments box.
This video demonstrates how to take a photo and turn it into a painting using the art history brush, the history brush, the history panel, and the filter gallery in Photoshop (CC2015)
A little bit on how to use the art history brush in Adobe Photoshop CC to create a painted look for a photo. Please visit matthewkramerart.com to see more of my work.