McKeever's paintings are nearly always distilled from information and ideas which he gains on walks in remote areas of the world. These are written or drawn into notebooks to which he refers from time to time. McKeever works in series, refining ideas from painting to painting. The Hartgrove series is particularly concerned with the notion of threshold: the point at which two-dimensional becomes three-dimensional, when life becomes death, or whitish black becomes blackish white. The painting consists of delicate layers or veils of paint, suggesting the passage of time. It also evokes shadows cast by the windows of McKeever's studio. Hartgrove is the name of the village in Dorset where McKeever lives.