Ron designed Snow Serpent in 1984. Above you can see an earlier sketch (left) and a later sketch (right). You can see how he evolved the character from a "1982 Cobra in winter gear" look into a much more unique figure design. The helmet, mask, and backpack evolved greatly and he added the fur details and snowshoes.
Above you can see the second sketch by Ron Rudat, next to the final presentation art by George Woodbridge.
Once management had bought into the design, Ron would get back to work creating figure sculpture sheets (also know as control art). These sheets showed views from the front and back and from both sides with the arms removed. Once completed, these sheets were shared with the sculptors that were tasked with creating the figures. Ron would work closely with the engineers when working on a vehicle, or with the sculptors when working on a figure, to ensure sure that the final product achieved his vision.
Once the Figure Sculpture Sheets were done and fabrication was underway, Ron would create a figure reference system (also known as a color chart). These charts showed: what color plastic every part of the figure should be molded in, where any logos or patches should be printed, and where spray ops should be applied and what colors to use. These color charts also included pantone samples and a column for comments/revisions. These charts were created to help guide the manufacturing partners in the Orient ( Asia ) and were incredibility detailed to help avoid mistakes. Before sending anything out Ron would work with costing people to make sure he was within budget.
Ron Rudat (R&D Figure Designer) discusses the inspiration for Snow Serpent.