The early Voris paintings are Arizona landscapes that glow and flow in ways that show the influence of European artists blending in a visual magnificence when combined with the openness of the west.
Sole exhibits were held at the Liever Art Galleries in Indianapolis, Laguna Beach, the University of Arizona and Cochise College.
Artist in Tucson who were engaged in work for the WPA in 1934 were Stella Roca, Lucy Drake Marlow, Louise Norton, and Voris.
In 1934 Voris completed a number of federal works including a large oil landscape titled "the Brook" and numerous watercolors of Tucson scenes.
The Tucson Daily Citizen wrote: "I don't want to give the bare facts about Mark Voris, but rather the terrible loss his retirement brings to the art department.
"[2] In a Memorial Resolution written by his colleges including Lez L. Haas, Robert Quinn, Gordon Heck, and Andrew Buchhauser they wrote: "As artist and teacher, Mark Voris' greatest gift lay in design.