"Hover between abstraction and representation"

Here goes a well-written sentence from NYT:
"The artists chosen by Ross Bleckner, a painter known for canvases that hover between abstraction and representation, display an ethereal quality similar to his own, except in photographs rather than paint."
http://www.nytimes.com/2011/09/25/nyregion/artists-choose-artists-at-the-parrish-art-museum-review.html