Farquharson had an instinctive feel for tonal balance within his paintings which were principally landscapes depicted in contrasting atmospheric conditions. Indeed, it has been suggested that his tonal palette is reminiscent of Corot's. His variety of subject-matter and the spontaneity with which he introduced incident has been compared to that of his predecessor Sam Bough. In his smaller works his style was thought to be more finished and coherent, the critic of the Art Journal commenting on a small work (22 x 36 in.) 'The Close of Day...has the intimacy of a study, and was done in a mood of annimate sincerity. It is far better than many of the Scottish painter's more ambitious efforts.' (1908; p. 231).