Hilary de Vries' art is full of light and energy. An outdoor artist, she works quickly and spontaneously, reacting to the colours and atmosphere of the landscape around her. She studied drawing, painting and stained glass, and this can be seen in the way she handles colour, using the white surface of the paper to let the colours glow for maximum impact.

Her main mediums are watercolour, acrylic and pastel, often used in combination with each other to create the desired effect. The colours are allowed to mix and overlap on the surface, leading to interesting and unexpected effects which add to the overall vitality and freshness of her work.