Denna was born in Edmonton, Alberta. She studied at Emily Carr Institute of Art & Design, earning a Bachelor of Fine Arts, and has also attained a Bachelor of Education from the University of Victoria in 1997. She has been teaching and working as an artist in the city of Vancouver for the past 20 years.
Denna specializes in using oil on wood & plaster. She often combines encaustic and transfer techniques with her work. Her paintings consist of personal symbols and organic shapes layered in glazes of luminescent color. Shapes and forms are transcended through transparent layers of paint.