In 1973, he travelled down the West African coast from Dakar in Senegal to Douala in Cameroon as cadet purser on the Merchant Navy vessel MV Dalla.
[3] In a review of Harrison's first solo show in 1990 at the Berkeley Square Gallery in London's Mayfair, Sewell wrote that Goya, Rembrandt and Delacroix might recognise him as in some sense their heir.
On 22 January 2009 his monumental crucifixion triptych “At The End … A Beginning” was installed and consecrated in the ambulatory behind the high altar in Liverpool Anglican Cathedral.
The landscapes depict the power and violence of natural forces, and the figurative works explore the dark and emotive subjects of Armageddon and Death.
Many of the paintings in the series of exhibitions at Albemarle Gallery from 2002 to 2016 have centred around such themes, in particular the biblical vision of St. John The Divine of The Four Horsemen of The Apocalypse, and the Greek myth surrounding the figure of Andromeda.