Having been born in Cornwall and never far from the sea, it was inevitable that this was to be a strong influence in his work. The sea could be said to be central to Barrie`s work, with its ever-changing moods, patterns and light. The view from his studio, perched right on the edge of the sea in Mounts Bay, is a constant inspiration.

While for most part being a plein air painter, Barrie also works from sketches and notes done on the spot, which are later worked up into larger paintings in the studio.The studio painting will often form part of a series.

His work is a response, not only to feelings he has for the subject, but also such qualities as colour, rythms, etc, inherent in the landscape. Such a response he considers essential to the success of the work. The chosen medium will be that which best conveys the initial impressions.