His work spans a broad range of media including painting, drawing, sculpture, film, photography, installation, video, performance and artist's books.
At the suggestion of Valerie Beston, of Marlborough Fine Art, Clark made the first of a series of portraits of Bacon, one of which is in the British Museum's collection.
"Michael Clark's portraits of Bacon emphasise the sad preoccupation of his sagging face, with eyes deep in concussed hollows grimly contemplating mortality".
'"[5]Maria Balshaw, director of the Tate, listed Clark's portrait of filmmaker Derek Jarman, The Gardener (1994), as one of her favourite works in the collection of the Whitworth Art Gallery.
Clark delivered Al-Jebr, a kinetic assemblage[9] made of mixed media portraying Roeg, which in Arabic means 'the bringing together of broken parts'.
He is a conceptual artist, for whom the painstakingly accurate depiction of the human face is only one of his means or media, and conversation with him ranges from the diverse influences of Rimbaud and Nauman as well as Holbein and Rembrandt.