Russian artists Petro and Slak AES have been busy. Here are some new walls from the two artists as they continue to push themselves on the scene. Russia seems to be a hotbed of talent with some new progressive and talented artists. Petro and Slak bring a new dimension to walls. A rhythmic geometric wildstyle that moves well on walls. We have featured both artists in the past on the site and its great to see new work from both.