“He got the job on the Bambi project by taking a bit of a gamble. He was a young artist employed by the Disney studio, but tasked with the entry-level job of finishing off the work of the animators and crafting the “in-between” animations that completed the characters’ movements. Wong had learned that studio executives were creating a film from the new novel, Bambi, A Life in the Woods by Felix Salten. Tom says the young artist read the book and without consulting his supervisor, “took the script and painted some visual concepts to set the mood, color and the design.” His sketches recalled the lush mountain and forest scenes of Sung dynasty landscape paintings. His initiative paid off. Walt Disney, who was looking for something new for the film, was captivated and personally directed that Wong be promoted.”
Found via Reddit.