Arlo Mercia devotes her practice to Oriental brush painting, focusing on the refined beauty of nature. Working with the Four Treasures—ink stick, ink stone, brushes, and paper—she combines Gongbi fine-line technique with an emphasis on capturing the spirit of her subjects. Her compositions balance careful planning with a spontaneous quality, aiming to evoke tranquillity rather than depict objective reality. Mercia has been honoured with the artist seal name Tao Ya Li, and her work appears on the Kobaien Inks of Japan website.