Clinching top spot for both the Themed Class (Limestone Country) and the Best in Show, Harrison’s image depicts the deep limestone ravine of Gordale Scar in North Yorkshire.
“This is a perfect photograph and ticks every box regarding composition, lighting and fulfilling the brief,” says Brabbs.
“Not a square inch of this composition is superfluous and the way that the perfectly sharp triangle of limestone pavement leads the eye onwards into the savage landscape of the dry valley is truly inspirational.”
Harrison was one of 62 society members to enter the competition. He was joined in the awards by Terry Abraham, winner of the Open Class with his image Heavenly light over Castlerigg.
"The gradated rays of light falling on the valley floor are perfect, backed up by the differing shades of grey hills rising up behind,” comments Brabbs. “This is a spectacular picture that any landscape photographer would love to have taken.”
Launched in 2003, The Wainwright Society Photographic Competition runs every year. To find out more, visit www.wainwright.org.uk/photocomp/index.html
Subscribe to BBC Countryfile Magazine today and you can enjoy generous savings from the shop price plus, free UK delivery and discounts off special editions and back issues.