Winnett studied at Michigan State University, East Lansing (1969-72), on a Michigan Higher Education Authority Scholarship and a Creative Arts Scholarship. She took her BA from the University of South Florida, Tampa, in 1975.
From 1978 Winnett has been a freelance graphic artist and photographer. She won individual photographers fellowships in 1978 and 1979 from the Fine Arts Council of Florida. The photographer uses selective chemical toning on black-and-white prints or employs Kwik- Print emulsion with applied hand stitching, dried flowers, sequins, or other objects such as ribbons and fabrics.
A member of SPE, VSW, and Associated Photographers of Winston-Salem, North Carolina.