Heidi Wu focuses on mixed medium painting and drawing, her practice echoes between the special phenomenon in nature and the emotions and behaviour of humans. The mixing usage of medium helps her to convey the message and emotions in various ways, letting the mediums to present their own uniqueness. With the subtle touch in different mediums, her works are rich in elusive emotions and serenity. Wu gets her inspiration from her daily observations of nature. In her creations, she uses symbolism and metaphor to express the special feelings and behaviour as a human towards the world.