Barnes received a breast cancer diagnosis in August, but she has also battled two brain tumors in her life.
"I just was sort of gone," she said. "There didn't feel like there was much of me left."
In October, she decided to try out the art therapy class that meets twice a week at the Clinical Cancer Center.
"The connection that I was able to reform between my thoughts and what my body does and the expression of my thoughts has been, I can't even describe the benefit I've gotten from art therapy," she said.
"The artwork is reflective of people's experiences," said Carrie Danhieux-Poole, an art therapist at Froedtert. "So others who are witnessing that by visiting the gallery can connect and know they're not alone in what they're experiencing, going through cancer."