Wanting to get to the bottom of it, we contacted artist Ken Steacy to ask him who did what with the cover of
Marvel comics Star Wars #105. He stated that the cover layout design was done by Cynthia Martin but the actual pencils, inks, and painting was his work. At the time of this update's publication, the original art is still available. If you are considering adding it to your collection, you'll be able to see the listing by following the link above.