Jack Bush's illustration style was perhaps the most "commercial" of the illustrators who participated in The Painters Eleven group of Canadian abstract expressionists.
His regular contributions to Canada's major magazines reveal deep roots in the advertising art market, going back to the 1930's, when Bush ran a commercial art business.
Some of his editorial work from the early 1950's might begin to hint at his interest and eventual immersion in the exploration of Colourfield Painting and Lyrical Abstraction.
Personally, I find Bush's bold and slightly simplified approach to classically realistic illustration very appealing. Though commercial art was ultimately not as artistically satisfying for Bush as his fine art efforts...
...his illustrations provide an interesting counterpoint to the abstract work for which he gained international reknown.
You can see all of these images at full size in my Jack Bush Flickr set.