Wilma was born in Washington, D.C. to Swiss parents. When she was 10 to 13 years old, she lived with her family in West Africa. As a young adult, she studied illustration at Rhode Island School of Design and received a BFA in graphic design from California College of the Arts.
After working as a freelance print designer for two decades, Wilma began creating abstract sculptures in concrete and mosaic in 2007. She developed her methods through a combination of self-teaching, experimentation, and classes. Wilma's work has been shown in over 50 shows nationally, and won several awards. She has participated in over a dozen open studio events. Wilma teaches mosaic art at Esalen Institute in Big Sur, CA, Studio 9 in Oakland, and for groups retreats. She is a member of Society of American Mosaic Artists and Tile Heritage Foundation.
Site-specific mosaic artwork has been commissioned by Kaiser Hospital in Oakland, CA, as well as Esalen Institute, in Big Sur, CA. In the summer of 2016, Wilma completed an outdoor sculpture commissioned by the Grinnell Arts Council, in Grinnell, Iowa, which was funded by the Iowa Arts Council and the National Endowment for the Arts. She has created and installed mosaics in bathrooms and kitchens in Bay Area private residences. In the last year and a half, Wilma has designed, fabricated and installed four outdoor mosaics in public parks in the San Francisco Area.