Create a stylized vector illustration of a Mojave desert tortoise with a flat color scheme, using a sunset color palette of warm oranges, reds, and purples reminiscent of the evening sky in the desert. The tortoise should be depicted in its natural habitat, with the artwork capturing its hardy and serene essence. Emphasize the intricate patterns on the tortoise's shell and its wise, gentle demeanor. The background should be minimal, perhaps with subtle desert plants, to keep the focus on the tortoise,