Thaddeus Mosley transforms felled trees near his Pittsburgh home into inventive abstract forms to create large sculptures, five of which are on view here. Made from walnut and created from 2015 onward, the American sculptor’s works reward close looking. The range of his woodworking techniques—carving, chiseling, and joining—come into view as light shimmers along the surface. From a distance, they stand together and unlock shapeshifting experiences. Mosley describes his compositional experimentation as the pursuit of presence, “the alchemy of turning something neutral into something alive.”