Roger Mortimer has been described as a contemporary visual mythologist. In his paintings beauty and barbarity combine as he grapples with the timelessness of the big issues of history and humanity. Medieval graphic imagery, set on a backdrop of marine charts, resonates with contemporary global issues to suggest both psychological and political readings.

Mortimer's paintings variously described as "elegant" and "carefully rendered jewel-like images" represent his search for a personal cosmology to make sense of global turbulence. As viewers, we are drawn into the quest to decipher the clues, codes, symbols and signs depicted in his intriguing maps of enigmatic landscapes.

In 2014 Mortimer was the Paramount Award Winner in the Wallace Art Awards - one of New Zealand's two top art awards - with the judge describing his work as "medieval in appearance and utterly contemporary contemporary in intent".

In 2017, a survey exhibition was shown in public galleries in Wellington and Auckland. Mortimer has a Bachelor of Fine Arts from the University of Auckland and has work in a range of public and private collections in New Zealand and Europe.