Hallway and Concrete Floor On a concrete wall near the stairway off the main hallway hangs an artwork that depicts the children. Nick conceptualized the piece with painter Bryce Chisholm and artist Jeff Johnson, who did the custom neon work. The floor is also made from concrete.  Photo 15 of 19 in A Forest Sanctuary Designed to Support Autistic Triplets, Their Parents, and a Host of Caregivers