Primarily a painter, Johnson's work dealt with dreams and imagination, providing enough detail to recognize figures and spaces but "encourages us to contemplate endings, meanings and loss."[9] Themes in her artwork ranged from Madonna figures to sexuality, pornography, archetypes and Jungian psychology.[10] With a feminist outlook, and using domestic interiors and natural landscapes as starting points for her paintings,[11] her works have been noted for their diary-like quality, being "like notations in a journal," of simple memories.[12] She painted guardian angels and claimed her favorite angel was Archangel Michael.[2] With her spirituality at the core of her artworks, in her own words, she said:
"I want my paintings to offer a space for the imagination and an affirmation of inner life."[13]
In 2020, the Art Gallery of Ontario acquired Johnson's monumental painting Night Games at the Paradise, 1984.[14]
Exhibitions
Johnson showed extensively throughout Toronto and Canada, including yearly solo exhibitions at the Carmen Lamanna Gallery from 1983 to 1991. She was represented by Christopher Cutts Gallery in Toronto,[15] which is where she held her last exhibition before her death, entitled Angels and Monsters.[16]
Curating work
From 2009 to 2011 she acted as guest curator for the Museum of Contemporary Canadian Art, and National Gallery @ MOCCA, providing research for the 2011 historical exhibition, "This is Paradise," [17] where Johnson said:
“This exhibition is a celebration of this era, marked by triumph and tragedy, and the reclamation of an important part of Toronto history. Works for this multidisciplinary exhibition have been borrowed from collections across Canada, to once again return to their origins, on Queen Street West.”[18]
In 2012, she curated and organized an exhibition of 32 artists from Canada titled TORONTO/BERLIN 1982–2012, hosted by the Zweigstelle Berlin Gallery in Berlin. In 2017, she was selected to be the visual editor of the Theatre Passe Muraille 50th anniversary book, and was recently included in A Concise History of Canadian Painting third edition.[19] She was included in Intervention: 31 Women Painters exhibition in Montreal, curated by Harold Klunder.[20]