Twist is a sixteen-part sculpture, made from marine-grade aluminium. It is installed on on the Riverena building in Rivervale, Western Australia.  Each 5.5m-tall element is a faceted sinusoidal wave-form. All sixteen elements are unique, each based on a different wave derived mathematically from a sine function. Wave amplitude, wavelength, and phase change systematically over the sixteen-part installation - so an overall "ripple pattern" emerges when the work is viewed obliquely.